CVE-2023-54142
kernel: Linux kernel: Privilege escalation via use-after-free in gtp module
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · August 21, 2026
Description
A flaw was found in the Linux kernel. A use-after-free vulnerability exists in the gtp module's __gtp_encap_destroy() function. A local attacker with low privileges could exploit this flaw by causing the system to free and then illegally access a socket. This could lead to memory corruption, potentially allowing the attacker to achieve privilege escalation or cause a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-825 · Expired Pointer Dereference