SB2023112446 - Local denial of service in Linux kernel
Published: November 24, 2023
Security Bulletin ID
SB2023112446
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2023-4732)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition caused by a BUG statement referencing pmd_t x within the pfn_swap_entry_to_page () function. A local user can exploit the race and crash the kernel.
Remediation
Install update from vendor's website.