SUSE update for the Linux Kernel



| Updated: 2022-10-19
Risk High
Patch available YES
Number of vulnerabilities 9
CVE-ID CVE-2017-16525
CVE-2021-26341
CVE-2021-4157
CVE-2022-1679
CVE-2022-20132
CVE-2022-20141
CVE-2022-29900
CVE-2022-29901
CVE-2022-33981
CWE-ID CWE-416
CWE-668
CWE-119
CWE-200
CWE-264
CWE-1037
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 SUSE Linux Enterprise Server
Operating systems & Components / Operating system

kernel-syms
Operating systems & Components / Operating system package or component

kernel-default-devel
Operating systems & Components / Operating system package or component

kernel-default-debugsource
Operating systems & Components / Operating system package or component

kernel-default-debuginfo
Operating systems & Components / Operating system package or component

kernel-default-base-debuginfo
Operating systems & Components / Operating system package or component

kernel-default-base
Operating systems & Components / Operating system package or component

kernel-default
Operating systems & Components / Operating system package or component

kernel-source
Operating systems & Components / Operating system package or component

kernel-macros
Operating systems & Components / Operating system package or component

kernel-devel
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Use-after-free error

EUVDB-ID: #VU9151

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-16525

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to use-after-free error in usb_serial_console_disconnect function in drivers/usb/serial/console.c. A local attacker can use a specially crafted USB device and cause the system to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Exposure of Resource to Wrong Sphere

EUVDB-ID: #VU61565

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-26341

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

Exploit availability: No

Description

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

The vulnerability exists due to some AMD CPUs may transiently execute beyond unconditional direct branches. A local user can gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Buffer overflow

EUVDB-ID: #VU63323

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-4157

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Linux kernel NFS subsystem. A remote attacker can create a specially crafted data and crash the system or escalate privileges on the system

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

4) Use-after-free

EUVDB-ID: #VU64861

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1679

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the ath9k_htc_wait_for_target() function in the Linux kernel’s Atheros wireless adapter driver. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Information disclosure

EUVDB-ID: #VU64136

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20132

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to excessive data output in the USB HID component in Linux Kernel. A local user can trigger the vulnerability to gain access to potentially sensitive information.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU64134

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20141

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

Exploit availability: No

Description

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

The vulnerability exists due to improper imposition of security restrictions in the Linux kernel's components. A local user can trigger the vulnerability to bypass security restrictions bypass and escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65205

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-29900

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

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

The vulnerability exists due to a mistrained branch predictions for return instructions. A local user can execute arbitrary speculative code under certain microarchitecture-dependent conditions. The vulnerability was dubbed  RETbleed.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65220

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-29901

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

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

The vulnerability exists due to the way non-transparent sharing of branch predictor targets between contexts. A local user can exploit the vulnerability to gain access to sensitive information.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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) Use-after-free

EUVDB-ID: #VU64944

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-33981

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in drivers/block/floppy.c in the Linux kernel when deallocating raw_cmd in the raw_cmd_ioctl function(). A local user can trigger use-after-free and perform denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP3-BCL

kernel-syms: before 4.4.180-94.167.1

kernel-default-devel: before 4.4.180-94.167.1

kernel-default-debugsource: before 4.4.180-94.167.1

kernel-default-debuginfo: before 4.4.180-94.167.1

kernel-default-base-debuginfo: before 4.4.180-94.167.1

kernel-default-base: before 4.4.180-94.167.1

kernel-default: before 4.4.180-94.167.1

kernel-source: before 4.4.180-94.167.1

kernel-macros: before 4.4.180-94.167.1

kernel-devel: before 4.4.180-94.167.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222478-1/


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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