Ubuntu update for intel-microcode



Risk Low
Patch available YES
Number of vulnerabilities 10
CVE-ID CVE-2021-0127
CVE-2021-0145
CVE-2021-0146
CVE-2021-33117
CVE-2021-33120
CVE-2022-21123
CVE-2022-21125
CVE-2022-21127
CVE-2022-21151
CVE-2022-21166
CWE-ID CWE-20
CWE-200
CWE-254
CWE-284
CWE-125
CWE-459
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

intel-microcode (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 10 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU60493

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0127

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 control flow management. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Information disclosure

EUVDB-ID: #VU60491

Risk: Low

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

CVE-ID: CVE-2021-0145

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 improper initialization of shared resources. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Security features bypass

EUVDB-ID: #VU64522

Risk: Low

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

CVE-ID: CVE-2021-0146

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

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

The vulnerability exists due to hardware allows activation of test or debug logic at runtime. An attacker with physical access to device can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

4) Improper access control

EUVDB-ID: #VU63349

Risk: Low

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

CVE-ID: CVE-2021-33117

CWE-ID: CWE-284 - Improper Access Control

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 local user can bypass implemented security restrictions and gain access to sensitive information.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Out-of-bounds read

EUVDB-ID: #VU60492

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33120

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

Exploit availability: No

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to a boundary condition in memory subsystem. A local user can trigger out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Information disclosure

EUVDB-ID: #VU64364

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21123

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.


Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Information disclosure

EUVDB-ID: #VU64365

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21125

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.



Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Incomplete cleanup

EUVDB-ID: #VU64376

Risk: Low

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

CVE-ID: CVE-2022-21127

CWE-ID: CWE-459 - Incomplete cleanup

Exploit availability: No

Description

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

The vulnerability exists due to incomplete cleanup in specific special register read operations. A local user can enable information disclosure.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Information disclosure

EUVDB-ID: #VU63348

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21151

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 an error during processor optimization removal or modification of security-critical code. A local privileged user can gain access to potentially sensitive information.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21166

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.

Mitigation

Update the affected package intel-microcode to the latest version.

Vulnerable software versions

Ubuntu: 16.04

intel-microcode (Ubuntu package): before 3.20220510.0ubuntu0.16.04.1+esm1

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5535-1


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.



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