SB20250402116 - Resource management error in Linux kernel mptcp
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250402116
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) Resource management error (CVE-ID: CVE-2025-21938)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the __mptcp_pm_release_addr_entry(), mptcp_pm_nl_append_new_local_addr(), mptcp_pm_nl_get_local_id() and mptcp_pm_nl_add_addr_doit() functions in net/mptcp/pm_netlink.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/022bfe24aad8937705704ff2e414b100cf0f2e1a
- https://git.kernel.org/stable/c/125ccafe6dd062901b5a0c31ee9038740fc8859e
- https://git.kernel.org/stable/c/4b228dae3d2cc6d9dce167449cd8fa9f028e9376
- https://git.kernel.org/stable/c/f1404f368c40fc6a068dad72e4ee0824ee6a78ee
- https://git.kernel.org/stable/c/f3fcdb2de9fdbed9d8c6a8eb2c5fbd7d6f54a4d8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.83