SUSE update for the Linux Kernel (Live Patch 26 for SLE 12 SP4)

1) Incorrect default permissions

EUVDB-ID: #VU63631

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-2022-30594

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

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

The vulnerability exists due to mishandling seccomp permissions. A local user can bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag and escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 26 for SLE 12 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 12-SP4

kgraft-patch-4_12_14-95_96-default: before 3-2.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:kgraft-patch-4_12_14-95_96-default:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20221940-1/

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.