SUSE update for the Linux Kernel

Published: 2022-09-27 | Updated: 2024-03-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	11
CVE-ID	CVE-2021-4203 CVE-2022-20368 CVE-2022-20369 CVE-2022-21385 CVE-2022-2588 CVE-2022-26373 CVE-2022-2663 CVE-2022-2977 CVE-2022-3028 CVE-2022-36879 CVE-2022-39188
CWE-ID	CWE-416 CWE-125 CWE-787 CWE-20 CWE-415 CWE-264 CWE-362 CWE-399
Exploitation vector	Network
Public exploit	Vulnerability #5 is being exploited in the wild.
Vulnerable software	SUSE Linux Enterprise Real Time Extension Operating systems & Components / Operating system kernel-source-rt Operating systems & Components / Operating system package or component kernel-devel-rt Operating systems & Components / Operating system package or component ocfs2-kmp-rt-debuginfo Operating systems & Components / Operating system package or component ocfs2-kmp-rt Operating systems & Components / Operating system package or component kernel-syms-rt Operating systems & Components / Operating system package or component kernel-rt_debug-devel-debuginfo Operating systems & Components / Operating system package or component kernel-rt_debug-devel Operating systems & Components / Operating system package or component kernel-rt_debug-debugsource Operating systems & Components / Operating system package or component kernel-rt_debug-debuginfo Operating systems & Components / Operating system package or component kernel-rt_debug Operating systems & Components / Operating system package or component kernel-rt-devel-debuginfo Operating systems & Components / Operating system package or component kernel-rt-devel Operating systems & Components / Operating system package or component kernel-rt-debugsource Operating systems & Components / Operating system package or component kernel-rt-debuginfo Operating systems & Components / Operating system package or component kernel-rt-base-debuginfo Operating systems & Components / Operating system package or component kernel-rt-base Operating systems & Components / Operating system package or component kernel-rt Operating systems & Components / Operating system package or component gfs2-kmp-rt-debuginfo Operating systems & Components / Operating system package or component gfs2-kmp-rt Operating systems & Components / Operating system package or component dlm-kmp-rt-debuginfo Operating systems & Components / Operating system package or component dlm-kmp-rt Operating systems & Components / Operating system package or component cluster-md-kmp-rt-debuginfo Operating systems & Components / Operating system package or component cluster-md-kmp-rt Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 11 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU63838

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-2021-4203

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 in sock_getsockopt() function in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() function (and connect() function) in the Linux kernel. A local user can exploit the use-after-free error and crash the system or escalate privileges on the system.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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 read

EUVDB-ID: #VU67473

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-2022-20368

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the packet_recvmsg() function in Linux kernel. A local user can trigger an out-of-bounds read error and potentially escalate privileges on the system.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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: #VU67474

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-2022-20369

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 within the v4l2_m2m_querybuf() function in v4l2-mem2mem.c. A local user can trigger ab 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 Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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) Input validation error

EUVDB-ID: #VU67475

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-2022-21385

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 within the net_rds_alloc_sgs() function in net/rds/message.c in Linux kernel. A local user can perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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) Double Free

EUVDB-ID: #VU66397

Risk: Low

CVSSv4.0: 8.5 [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:A/U:Clear]

CVE-ID: CVE-2022-2588

CWE-ID: CWE-415 - Double Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a double free error within the network packet scheduler implementation in the route4_change() function in Linux kernel when removing all references to a route filter before freeing it. A local user can run a specially crafted program to crash the kernel or execute arbitrary code.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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?

Yes. This vulnerability is being exploited in the wild.

6) Security restrictions bypass

EUVDB-ID: #VU66549

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-2022-26373

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

Exploit availability: No

Description

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

The vulnerability exists due to non-transparent sharing of return predictor targets between contexts in Intel CPU processors. A local user can bypass the expected architecture isolation between contexts and gain 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 Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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) Input validation error

EUVDB-ID: #VU67510

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-2663

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass firewall rules.

The vulnerability exists due to insufficient validation of user-supplied input in nf_conntrack_irc in Linux kernel. A remote attacker can send unencrypted IRC with nf_conntrack_irc configured and bypass configured firewall rules.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

8) Use-after-free

EUVDB-ID: #VU67479

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-2022-2977

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 in the Linux kernel implementation of proxied virtualized TPM devices. A local user can trigger a use-after-free 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 Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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) Race condition

EUVDB-ID: #VU67477

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-2022-3028

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 the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. A local user can exploit the race and escalate privileges on the system.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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) Resource management error

EUVDB-ID: #VU66550

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-2022-36879

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources within the xfrm_expand_policies() function in net/xfrm/xfrm_policy.c. A local user can cause the refcount to be dropped twice and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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.

11) Race condition

EUVDB-ID: #VU67478

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-2022-39188

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 within include/asm-generic/tlb.h in the Linux kernel. A local user can exploit the race and escalate privileges on the system.

Note, this only occurs in situations with VM_PFNMAP VMAs.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Real Time Extension: 12-SP5

kernel-source-rt: before 4.12.14-10.100.1

kernel-devel-rt: before 4.12.14-10.100.1

ocfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

ocfs2-kmp-rt: before 4.12.14-10.100.1

kernel-syms-rt: before 4.12.14-10.100.1

kernel-rt_debug-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug-devel: before 4.12.14-10.100.1

kernel-rt_debug-debugsource: before 4.12.14-10.100.1

kernel-rt_debug-debuginfo: before 4.12.14-10.100.1

kernel-rt_debug: before 4.12.14-10.100.1

kernel-rt-devel-debuginfo: before 4.12.14-10.100.1

kernel-rt-devel: before 4.12.14-10.100.1

kernel-rt-debugsource: before 4.12.14-10.100.1

kernel-rt-debuginfo: before 4.12.14-10.100.1

kernel-rt-base-debuginfo: before 4.12.14-10.100.1

kernel-rt-base: before 4.12.14-10.100.1

kernel-rt: before 4.12.14-10.100.1

gfs2-kmp-rt-debuginfo: before 4.12.14-10.100.1

gfs2-kmp-rt: before 4.12.14-10.100.1

dlm-kmp-rt-debuginfo: before 4.12.14-10.100.1

dlm-kmp-rt: before 4.12.14-10.100.1

cluster-md-kmp-rt-debuginfo: before 4.12.14-10.100.1

cluster-md-kmp-rt: before 4.12.14-10.100.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223422-1/

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.