SB2022122123 - SUSE update for the Linux Kernel (Live Patch 37 for SLE 12 SP5)

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Main Vulnerability Database SB2022122123

SB2022122123 - SUSE update for the Linux Kernel (Live Patch 37 for SLE 12 SP5)

Published: December 21, 2022

Security Bulletin ID SB2022122123
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Stack-based buffer overflow (CVE-ID: CVE-2022-4378)

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

The vulnerability exists due to a boundary error within the __do_proc_dointvec() function. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.


2) Buffer overflow (CVE-ID: CVE-2022-43945)

The vulnerability allows a remote attacker to perform a denial of service attacl.

The vulnerability exists due to a boundary error within the Linux kernel NFSD implementation. A remote attacker can send the RPC message over TCP with garbage data added at the end of the message, trigger memory corruption and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References