SB20240531109 - Use-after-free in Linux kernel
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531109
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-2024-26983)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the xbc_alloc_mem(), xbc_parse_tree() and xbc_init() functions in lib/bootconfig.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1e7feb31a18c197d63a5e606025ed63c762f8918
- https://git.kernel.org/stable/c/e46d3be714ad9652480c6db129ab8125e2d20ab7
- https://git.kernel.org/stable/c/5a7dfb8fcd3f29fc93161100179b27f24f3d5f35
- https://git.kernel.org/stable/c/89f9a1e876b5a7ad884918c03a46831af202c8a0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.88
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.29