SB2022051176 - SUSE update for the Linux Kernel (Live Patch 44 for SLE 12 SP3)

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Main Vulnerability Database SB2022051176

SB2022051176 - SUSE update for the Linux Kernel (Live Patch 44 for SLE 12 SP3)

Published: May 11, 2022 Updated: June 18, 2023

Security Bulletin ID SB2022051176
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) 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.


2) Security features bypass (CVE-ID: CVE-2021-39713)

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

The vulnerability exists due to multiple issues in Qdisc implementation related to rcu read lock. A local application can execute arbitrary code with elevated privileges.


3) Use-after-free (CVE-ID: CVE-2022-1011)

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

The vulnerability exists due to a use-after-free error in the write() function of FUSE filesystem. A local user can retireve (partial) /etc/shadow hashes and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References