SB2024030731 - Privilege escalation in Linux kernel tomoyo
Published: March 7, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024030731
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-26622)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tomoyo_write_control() function. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.212
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.151
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8