SB2024060476 - Use-after-free in Linux kernel x86 kernel
Published: June 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060476
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-2023-52576)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the add_early_ima_buffer() function in arch/x86/kernel/setup.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b
- https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204
- https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.56
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6