SB20250916195 - NULL pointer dereference in Linux kernel xfrm
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916195
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) NULL pointer dereference (CVE-ID: CVE-2023-53147)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the xfrm_update_ae_params() function 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/00374d9b6d9f932802b55181be9831aa948e5b7c
- https://git.kernel.org/stable/c/075448a2eb753f813fe873cfa52853e9fef8eedb
- https://git.kernel.org/stable/c/44f69c96f8a147413c23c68cda4d6fb5e23137cd
- https://git.kernel.org/stable/c/53df4be4f5221e90dc7aa9ce745a9a21bb7024f4
- https://git.kernel.org/stable/c/8046beb890ebc83c5820188c650073e1c6066e67
- https://git.kernel.org/stable/c/87b655f4936b6fc01f3658aa88a22c923b379ebd
- https://git.kernel.org/stable/c/bd30aa9c7febb6e709670cd5154194189ca3b7b5
- https://git.kernel.org/stable/c/ed1cba039309c80b49719fcff3e3d7cdddb73d96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.324