SB2022030228 - SUSE update for the Linux Kernel (Live Patch 42 for SLE 12 SP3)

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Main Vulnerability Database SB2022030228

SB2022030228 - SUSE update for the Linux Kernel (Live Patch 42 for SLE 12 SP3)

Published: March 2, 2022

Security Bulletin ID SB2022030228
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2021-0920)

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

The vulnerability exists due to a use-after-free error within the unix_scm_to_skb() function of af_unix.c in Linux kernel. A local user can run a specially crafted program to trigger a race condition and execute arbitrary code with elevated privileges.



2) Improper Initialization (CVE-ID: CVE-2021-28688)

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

The vulnerability exists due to improper initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. A local user can perform a denial of service attack.


Remediation

Install update from vendor's website.

References