SB2025050495 - Input validation error in Linux kernel ipv4
Published: May 4, 2025 Updated: May 10, 2025
Security Bulletin ID
SB2025050495
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2023-53121)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the tcp_make_synack() function in net/ipv4/tcp_output.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/442aa78ed70188b21ccd8669738448702c0a3281
- https://git.kernel.org/stable/c/7613cde8c0c1f02a7ec2e1d536c01b65b135fc1c
- https://git.kernel.org/stable/c/77ad58bca0119e8cc3e0e9d91a3f22caa66e4dfa
- https://git.kernel.org/stable/c/9180aa4622a720b433e842b4d3aa34d73eec577a
- https://git.kernel.org/stable/c/ad07290d63ff6689f50565b02f5b6f34ec15a5ca
- https://git.kernel.org/stable/c/bced3f7db95ff2e6ca29dc4d1c9751ab5e736a09
- https://git.kernel.org/stable/c/d493d4fe88195a144d6a277a90062a7534ed2192
- https://git.kernel.org/stable/c/e23ca307745be3df7fe9762f3e2a7e311a57852e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.279