SB2023091114 - Privilege escalation in Linux kernel packet scheduler



SB2023091114 - Privilege escalation in Linux kernel packet scheduler

Published: September 11, 2023

Security Bulletin ID SB2023091114
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free (CVE-ID: CVE-2023-4206)

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

The vulnerability exists due to a use-after-free error within the the cls_route component in Linux kernel packet scheduler. A local user can trigger a use-after-free error and execute arbitrary code on the system.


Remediation

Install update from vendor's website.