SB2024030724 - Denial of service in Linux kernel syscall handling
Published: March 7, 2024
Security Bulletin ID
SB2024030724
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2024-25744)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to missing access restrictions related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c. An untrusted VMM can trigger int80 syscall handling at any given point and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.