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

Published: 2022-09-25

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-1652 CVE-2022-39188
CWE-ID	CWE-416 CWE-362
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system kgraft-patch-4_12_14-95_96-default Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU64434

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-2022-1652

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 use-after-free error in the bad_flp_intr() function. A local user can execute a specially-crafted program to cause a denial of service condition on the system or 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 8-2.2

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20223373-1/

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) Race condition

EUVDB-ID: #VU67478