SB2022092705 - SUSE update for the Linux Kernel (Live Patch 23 for SLE 15 SP3)

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Main Vulnerability Database SB2022092705

SB2022092705 - SUSE update for the Linux Kernel (Live Patch 23 for SLE 15 SP3)

Published: September 27, 2022

Security Bulletin ID SB2022092705
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-2021-39698)

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

The vulnerability exists due to a use-after-free error in Linux kernel. A local user can run a specially crafted program to trigger the use-after-free error and execute arbitrary code with elevated privileges.


2) Race condition (CVE-ID: CVE-2022-39188)

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

The vulnerability exists due to a race condition within include/asm-generic/tlb.h in the Linux kernel. A local user can exploit the race and escalate privileges on the system.

Note, this only occurs in situations with VM_PFNMAP VMAs.


Remediation

Install update from vendor's website.

References