SUSE update for the Linux Kernel



| Updated: 2022-10-19
Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2021-26341
CVE-2021-33655
CVE-2021-33656
CVE-2022-1462
CWE-ID CWE-668
CWE-787
CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

SUSE Linux Enterprise High Availability
Operating systems & Components / Operating system

SUSE Linux Enterprise Live Patching
Operating systems & Components / Operating system

SUSE OpenStack Cloud Crowbar
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE OpenStack Cloud
Operating systems & Components / Operating system

ocfs2-kmp-default-debuginfo
Operating systems & Components / Operating system package or component

ocfs2-kmp-default
Operating systems & Components / Operating system package or component

gfs2-kmp-default-debuginfo
Operating systems & Components / Operating system package or component

gfs2-kmp-default
Operating systems & Components / Operating system package or component

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

dlm-kmp-default
Operating systems & Components / Operating system package or component

cluster-md-kmp-default-debuginfo
Operating systems & Components / Operating system package or component

cluster-md-kmp-default
Operating systems & Components / Operating system package or component

kgraft-patch-4_12_14-95_105-default
Operating systems & Components / Operating system package or component

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

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

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

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

kernel-default-devel-debuginfo
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 4 vulnerabilities.

1) 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-SP4-LTSS - 12-SP4

SUSE Linux Enterprise High Performance Computing: 12-SP4

SUSE Linux Enterprise High Availability: 12-SP4

SUSE Linux Enterprise Live Patching: 12-SP4

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE OpenStack Cloud: 9

ocfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

ocfs2-kmp-default: before 4.12.14-95.105.1

gfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

gfs2-kmp-default: before 4.12.14-95.105.1

dlm-kmp-default-debuginfo: before 4.12.14-95.105.1

dlm-kmp-default: before 4.12.14-95.105.1

cluster-md-kmp-default-debuginfo: before 4.12.14-95.105.1

cluster-md-kmp-default: before 4.12.14-95.105.1

kgraft-patch-4_12_14-95_105-default: before 1-6.3.1

kernel-default-kgraft-devel: before 4.12.14-95.105.1

kernel-default-kgraft: before 4.12.14-95.105.1

kernel-default-man: before 4.12.14-95.105.1

kernel-syms: before 4.12.14-95.105.1

kernel-default-devel-debuginfo: before 4.12.14-95.105.1

kernel-default-devel: before 4.12.14-95.105.1

kernel-default-debugsource: before 4.12.14-95.105.1

kernel-default-debuginfo: before 4.12.14-95.105.1

kernel-default-base-debuginfo: before 4.12.14-95.105.1

kernel-default-base: before 4.12.14-95.105.1

kernel-default: before 4.12.14-95.105.1

kernel-source: before 4.12.14-95.105.1

kernel-macros: before 4.12.14-95.105.1

kernel-devel: before 4.12.14-95.105.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222808-1/


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) Out-of-bounds write

EUVDB-ID: #VU65833

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-2021-33655

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 in FBIOPUT_VSCREENINFO IOCTL. A local user can trigger an out-of-bounds write error and 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-SP4-LTSS - 12-SP4

SUSE Linux Enterprise High Performance Computing: 12-SP4

SUSE Linux Enterprise High Availability: 12-SP4

SUSE Linux Enterprise Live Patching: 12-SP4

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE OpenStack Cloud: 9

ocfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

ocfs2-kmp-default: before 4.12.14-95.105.1

gfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

gfs2-kmp-default: before 4.12.14-95.105.1

dlm-kmp-default-debuginfo: before 4.12.14-95.105.1

dlm-kmp-default: before 4.12.14-95.105.1

cluster-md-kmp-default-debuginfo: before 4.12.14-95.105.1

cluster-md-kmp-default: before 4.12.14-95.105.1

kgraft-patch-4_12_14-95_105-default: before 1-6.3.1

kernel-default-kgraft-devel: before 4.12.14-95.105.1

kernel-default-kgraft: before 4.12.14-95.105.1

kernel-default-man: before 4.12.14-95.105.1

kernel-syms: before 4.12.14-95.105.1

kernel-default-devel-debuginfo: before 4.12.14-95.105.1

kernel-default-devel: before 4.12.14-95.105.1

kernel-default-debugsource: before 4.12.14-95.105.1

kernel-default-debuginfo: before 4.12.14-95.105.1

kernel-default-base-debuginfo: before 4.12.14-95.105.1

kernel-default-base: before 4.12.14-95.105.1

kernel-default: before 4.12.14-95.105.1

kernel-source: before 4.12.14-95.105.1

kernel-macros: before 4.12.14-95.105.1

kernel-devel: before 4.12.14-95.105.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222808-1/


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) Out-of-bounds write

EUVDB-ID: #VU66590

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-2021-33656

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 when setting font with malicous data by ioctl cmd PIO_FONT. A local user can trigger an out-of-bounds write and 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-SP4-LTSS - 12-SP4

SUSE Linux Enterprise High Performance Computing: 12-SP4

SUSE Linux Enterprise High Availability: 12-SP4

SUSE Linux Enterprise Live Patching: 12-SP4

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE OpenStack Cloud: 9

ocfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

ocfs2-kmp-default: before 4.12.14-95.105.1

gfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

gfs2-kmp-default: before 4.12.14-95.105.1

dlm-kmp-default-debuginfo: before 4.12.14-95.105.1

dlm-kmp-default: before 4.12.14-95.105.1

cluster-md-kmp-default-debuginfo: before 4.12.14-95.105.1

cluster-md-kmp-default: before 4.12.14-95.105.1

kgraft-patch-4_12_14-95_105-default: before 1-6.3.1

kernel-default-kgraft-devel: before 4.12.14-95.105.1

kernel-default-kgraft: before 4.12.14-95.105.1

kernel-default-man: before 4.12.14-95.105.1

kernel-syms: before 4.12.14-95.105.1

kernel-default-devel-debuginfo: before 4.12.14-95.105.1

kernel-default-devel: before 4.12.14-95.105.1

kernel-default-debugsource: before 4.12.14-95.105.1

kernel-default-debuginfo: before 4.12.14-95.105.1

kernel-default-base-debuginfo: before 4.12.14-95.105.1

kernel-default-base: before 4.12.14-95.105.1

kernel-default: before 4.12.14-95.105.1

kernel-source: before 4.12.14-95.105.1

kernel-macros: before 4.12.14-95.105.1

kernel-devel: before 4.12.14-95.105.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222808-1/


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.

4) Out-of-bounds read

EUVDB-ID: #VU66591

Risk: Low

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

CVE-ID: CVE-2022-1462

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the the Linux kernel’s TeleTYpe subsystem caused by a race condition when using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory file. A local user can trigger an out-of-bounds read error and crash the system or read random kernel memory.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP4-LTSS - 12-SP4

SUSE Linux Enterprise High Performance Computing: 12-SP4

SUSE Linux Enterprise High Availability: 12-SP4

SUSE Linux Enterprise Live Patching: 12-SP4

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE OpenStack Cloud: 9

ocfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

ocfs2-kmp-default: before 4.12.14-95.105.1

gfs2-kmp-default-debuginfo: before 4.12.14-95.105.1

gfs2-kmp-default: before 4.12.14-95.105.1

dlm-kmp-default-debuginfo: before 4.12.14-95.105.1

dlm-kmp-default: before 4.12.14-95.105.1

cluster-md-kmp-default-debuginfo: before 4.12.14-95.105.1

cluster-md-kmp-default: before 4.12.14-95.105.1

kgraft-patch-4_12_14-95_105-default: before 1-6.3.1

kernel-default-kgraft-devel: before 4.12.14-95.105.1

kernel-default-kgraft: before 4.12.14-95.105.1

kernel-default-man: before 4.12.14-95.105.1

kernel-syms: before 4.12.14-95.105.1

kernel-default-devel-debuginfo: before 4.12.14-95.105.1

kernel-default-devel: before 4.12.14-95.105.1

kernel-default-debugsource: before 4.12.14-95.105.1

kernel-default-debuginfo: before 4.12.14-95.105.1

kernel-default-base-debuginfo: before 4.12.14-95.105.1

kernel-default-base: before 4.12.14-95.105.1

kernel-default: before 4.12.14-95.105.1

kernel-source: before 4.12.14-95.105.1

kernel-macros: before 4.12.14-95.105.1

kernel-devel: before 4.12.14-95.105.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222808-1/


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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