#VU114797 Memory leak in Linux kernel - CVE-2025-38721
Published: September 4, 2025
Vulnerability identifier: #VU114797
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-38721
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ctnetlink_done(), ctnetlink_get_id(), NFNL_MSG_TYPE() and local_bh_enable() functions in net/netfilter/nf_conntrack_netlink.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/19b909a4b1452fb97e477d2f08b97f8d04095619
- https://git.kernel.org/stable/c/30cf811058552b8cd0e98dff677ef3f89d6d34ce
- https://git.kernel.org/stable/c/41462f4cfc583513833f87f9ee55d12da651a7e3
- https://git.kernel.org/stable/c/586892e341fbf698e7cbaca293e1353957db725a
- https://git.kernel.org/stable/c/962518c6ca9f9a13df099cafa429f72f68ad61f0
- https://git.kernel.org/stable/c/a2cb4df7872de069f809de2f076ec8e54d649fe3
- https://git.kernel.org/stable/c/a62d6aa3f31f216b637a4c71b7a8bfc7c57f049b
- https://git.kernel.org/stable/c/de788b2e6227462b6dcd0e07474e72c089008f74
- https://git.kernel.org/stable/c/e14f72aa66c029db106921d621edcedef68e065b