SB20250226290 - Use-after-free in Linux kernel rxrpc
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226290
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-2022-49087)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the rxrpc_exit_net() function in net/rxrpc/net_ns.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/08ff0e74fab517dbc44e11b8bc683dd4ecc65950
- https://git.kernel.org/stable/c/1946014ca3b19be9e485e780e862c375c6f98bad
- https://git.kernel.org/stable/c/41024a40f6c793abbb916a857f18fb009f07464c
- https://git.kernel.org/stable/c/571d8e1d154ca18f08dcb72b69318d36e10010a0
- https://git.kernel.org/stable/c/7ee84d29f22de6f6c63fad6c54690517659862f1
- https://git.kernel.org/stable/c/864297ee30727ae6233f80296b7fc91442620b05
- https://git.kernel.org/stable/c/cd8aef1f30d1215648e4e6686cfb422004851429
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3