SB20251001186 - Input validation error in Linux kernel udf
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001186
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-2023-53506)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the udf_merge_extents() function in fs/udf/inode.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/3d20e3b768aff32112bdce8d3219d923ae75f9f1
- https://git.kernel.org/stable/c/53cafe1d6d8ef9f93318e5bfccc0d24f27d41ced
- https://git.kernel.org/stable/c/5d029799d381a9ee06209a222cae75f04c5d5304
- https://git.kernel.org/stable/c/7a965da79f2d22601f329cbfce588386b0847544
- https://git.kernel.org/stable/c/965982feb333aefa9256c0fe188b5f1b958aef63
- https://git.kernel.org/stable/c/9a8d602f0723586e668bae7e65c832ceb9bcc8bc
- https://git.kernel.org/stable/c/adac9ac6d2e04ea0782b91a00ba10706002f3ec4
- https://git.kernel.org/stable/c/d52252a1de4cf96a34f722b0cd8902d8ff78eb57
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.308