SB20250327101 - Use-after-free in Linux kernel net
Published: March 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250327101
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-2023-53021)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the taprio_reset() and taprio_destroy() functions in net/sched/sch_taprio.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1200388a0b1c3c6fda48d4d2143db8f7e4ef5348
- https://git.kernel.org/stable/c/3a415d59c1dbec9d772dbfab2d2520d98360caae
- https://git.kernel.org/stable/c/c53acbf2facfdfabdc6e6984a1a38f5d38b606a1
- https://git.kernel.org/stable/c/c60fe70078d6e515f424cb868d07e00411b27fbc
- https://git.kernel.org/stable/c/d3b2d2820a005e43855fa71b80c4a4b194201c60
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.9