SUSE update for the Linux Kernel (Live Patch 2 for SLE 15 SP4)

Published: 2022-11-17 | Updated: 2024-06-07

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2022-1882 CVE-2022-2588 CVE-2022-42703 CVE-2022-42722
CWE-ID	CWE-416 CWE-415 CWE-476
Exploitation vector	Local network
Public exploit	Vulnerability #2 is being exploited in the wild. Public exploit code for vulnerability #3 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise Module for Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system kernel-livepatch-SLE15-SP4_Update_2-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_18-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_14_21-150400_24_18-default Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU68108

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-2022-1882

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 Linux kernel’s pipes functionality in free_pipe_info() function in fs/pipe.c. 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 (Live Patch 2 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Live Patching: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-livepatch-SLE15-SP4_Update_2-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default: before 5-150400.2.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224039-1/

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) Double Free

EUVDB-ID: #VU66397

Risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

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 (Live Patch 2 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Live Patching: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-livepatch-SLE15-SP4_Update_2-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default: before 5-150400.2.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224039-1/

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.

3) Use-after-free

EUVDB-ID: #VU69297

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-42703

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a use-after-free error within the mm/rmap.c in the Linux kernel, related to leaf anon_vma double reuse. A local user can trigger a use-after-free error and crash the kernel.

Mitigation

Update the affected package the Linux Kernel (Live Patch 2 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Live Patching: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-livepatch-SLE15-SP4_Update_2-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default: before 5-150400.2.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224039-1/

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. However, proof of concept for this vulnerability is available.

4) NULL pointer dereference

EUVDB-ID: #VU68317

Risk: Medium

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

CVE-ID: CVE-2022-42722

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the mac80211 stack in Linux kernel. A remote attacker on the local network can send specially crafted WLAN frames to the affected system and perform a denial of service (DoS) attack against the beacon protection of P2P devices.

Mitigation

Update the affected package the Linux Kernel (Live Patch 2 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Live Patching: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

kernel-livepatch-SLE15-SP4_Update_2-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_18-default: before 5-150400.2.1

CPE2.3

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224039-1/

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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