Multiple vulnerabilities in various AMD processors

1) Race condition

EUVDB-ID: #VU63738

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12951

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in ASP firmware. A local user can exploit the race and perform ASP SMM (System Management Mode) operations.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Security features bypass

EUVDB-ID: #VU63746

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26382

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to missing verification of the signing key when processing ACP firmware images. A local privileged user can load any legitimately signed firmware image into the Audio Co-Processor (ACP) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds write

EUVDB-ID: #VU63745

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26384

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in System Management Interface. A local user can run a specially crafted SMI command to establish a corrupted SMI Trigger Info data structure and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Input validation error

EUVDB-ID: #VU63744

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26368

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient check of the process type in Trusted OS (TOS). A local user can enable a lesser privileged process to unmap memory owned by a higher privileged process and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Buffer overflow

EUVDB-ID: #VU63743

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12944

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error when processing BIOS image length in ASP Firmware. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Input validation error

EUVDB-ID: #VU63742

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26362

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input. A malicious or compromised UApp or ABL can issue a malformed system call, which results in mapping sensitive System Management Network (SMN) registers, and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Buffer overflow

EUVDB-ID: #VU63741

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26390

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error. A malicious or compromised UApp or ABL can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Input validation error

EUVDB-ID: #VU63740

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26351

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient DRAM address validation in System Management Unit (SMU). A local user can force DMA (Direct Memory Access) to read or write from/to invalid DRAM address and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Buffer overflow

EUVDB-ID: #VU63739

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26352

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in System Management Unit (SMU) PCIe Hot Plug table. A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Input validation error

EUVDB-ID: #VU63737

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26337

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient DRAM address validation in System Management Unit (SMU). A local user can force DMA to read from invalid DRAM address to SRAM and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Insufficient verification of data authenticity

EUVDB-ID: #VU63727

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26317

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to failure to verify the protocol in AMD System Management Mode (SMM). A local user can modify SPI flash and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Buffer overflow

EUVDB-ID: #VU63736

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26336

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in System Management Unit (SMU). A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Buffer overflow

EUVDB-ID: #VU63735

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26386

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error. A malicious or compromised UApp or ABL can issue a malformed system call to the Stage 2 Bootloader, trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Out-of-bounds write

EUVDB-ID: #VU63734

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26369

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error. A malicious or compromised UApp or ABL can send a malformed system call to the bootloader and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

15) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU63733

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26366

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to unspecified error. A local privileged user can read data from Boot ROM resulting in a loss of system integrity.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU63732

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26363

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to improper access restrictions. A malicious or compromised UApp or ABL can modify value used by ASP for its reserved DRAM to one outside of the fenced area and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

17) Information disclosure

EUVDB-ID: #VU63731

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26361

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to unspecified error. A malicious or compromised User Application (UApp) or AGESA Boot Loader (ABL) can be used to exfiltrate arbitrary memory from the ASP stage 2 bootloader potentially leading to information disclosure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Input validation error

EUVDB-ID: #VU63730

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12946

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in ASP firmware for discrete TPM commands. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Security features bypass

EUVDB-ID: #VU63729

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39298

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to unspecified error in AMD System Management Mode (SMM) interrupt handler. A local privileged user can bypass security mechanisms provided in the UEFI firmware and execute arbitrary code.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Input validation error

EUVDB-ID: #VU63728

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26335

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in the AMD Secure Processor (ASP) boot loader image header. A local user can escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

21) Buffer overflow

EUVDB-ID: #VU63678

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26373

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the System Management Unit (SMU). A local user can trigger a system voltage malfunction and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

22) Input validation error

EUVDB-ID: #VU63680

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26376

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in System Management Unit (SMU) FeatureConfig. A local user can re-enable certain features, which can lead to denial of service.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

23) Buffer overflow

EUVDB-ID: #VU63681

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26375

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in System Management Unit (SMU). A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

24) Buffer overflow

EUVDB-ID: #VU63682

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26378

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in System Management Unit (SMU). A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

25) Buffer overflow

EUVDB-ID: #VU63683

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26372

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in System Management Unit (SMU). A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 2000 series Desktop processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

26) Input validation error

EUVDB-ID: #VU63684

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26339

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to an error in the AMD CPU’s core logic when using specific code from an unprivileged VM. A remote user with low-privileged access to guest OS can send a specific x86 instruction sequence that triggers CPU core hang.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor with Radeon graphics: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

27) Out-of-bounds read

EUVDB-ID: #VU63687

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26388

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in the BIOS directory that allows for searches to read beyond the directory table copy in RAM. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

2nd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

28) Out-of-bounds write

EUVDB-ID: #VU63690

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26312

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error caused by failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU). A local user can force an IO device to write to memory it should not be able to access and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

AMD Ryzen 5000 Series Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor with Radeon graphics: All versions

2nd Gen AMD Ryzen Mobile processor with Radeon graphics: All versions

AMD Ryzen 3000 Series Mobile processor: All versions

AMD Ryzen Threadripper PRO processors: All versions

AMD Ryzen 5000 Series Desktop processor: All versions

AMD Ryzen 3000 Series Desktop processor: All versions

AMD Ryzen 2000 series Desktop processor: All versions

AMD Athlon 3000 Series Mobile processors with Radeon Graphics: All versions

AMD Ryzen 2000 Series Mobile processor: All versions

3rd Gen AMD Ryzen Threadripper processors: All versions

CPE2.3

External links

http://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Risk	Low
Patch available	YES
Number of vulnerabilities	28
CVE-ID	CVE-2020-12951 CVE-2021-26382 CVE-2021-26384 CVE-2021-26368 CVE-2020-12944 CVE-2021-26362 CVE-2021-26390 CVE-2021-26351 CVE-2021-26352 CVE-2021-26337 CVE-2021-26317 CVE-2021-26336 CVE-2021-26386 CVE-2021-26369 CVE-2021-26366 CVE-2021-26363 CVE-2021-26361 CVE-2020-12946 CVE-2021-39298 CVE-2021-26335 CVE-2021-26373 CVE-2021-26376 CVE-2021-26375 CVE-2021-26378 CVE-2021-26372 CVE-2021-26339 CVE-2021-26388 CVE-2021-26312
CWE-ID	CWE-362 CWE-254 CWE-787 CWE-20 CWE-119 CWE-345 CWE-264 CWE-200 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	AMD Ryzen 2000 series Desktop processor Hardware solutions / Firmware AMD Ryzen 3000 Series Desktop processor Hardware solutions / Firmware AMD Ryzen 5000 Series Desktop processor Hardware solutions / Firmware 3rd Gen AMD Ryzen Threadripper processors Hardware solutions / Firmware AMD Ryzen Threadripper PRO processors Hardware solutions / Firmware AMD Ryzen 3000 Series Mobile processor Hardware solutions / Firmware 2nd Gen AMD Ryzen Mobile processor with Radeon graphics Hardware solutions / Firmware AMD Athlon 3000 Series Mobile processors with Radeon Graphics Hardware solutions / Firmware AMD Ryzen 3000 Series Mobile processor with Radeon graphics Hardware solutions / Firmware AMD Ryzen 5000 Series Mobile processor with Radeon graphics Hardware solutions / Firmware AMD Ryzen 5000 Series Desktop processor with Radeon graphics Hardware solutions / Firmware AMD Ryzen 2000 Series Mobile processor Hardware solutions / Firmware 2nd Gen AMD Ryzen Threadripper processors Hardware solutions / Firmware
Vendor	AMD