SB20251008131 - Input validation error in Linux kernel xfrm
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB20251008131
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-2023-53684)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the copy_to_user_aead(), copy_to_user_ealg() and copy_to_user_state_extra() functions in net/xfrm/xfrm_user.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/0725daaa9a879388ed312110f62dbd5ea2d75f8f
- https://git.kernel.org/stable/c/1a351e26cc010d6991fbbd5701ac16581372e26f
- https://git.kernel.org/stable/c/5218af4ad5d8948faac19f71583bcd786c3852df
- https://git.kernel.org/stable/c/8222d5910dae08213b6d9d4bc9a7f8502855e624
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.106
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3