CVE-2023-3772 MEDIUM

CVE-2023-3772: Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-476
Published July 25, 2023
Last update November 7, 2025
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

Key dates

02Disclosure timeline

July 25, 2023 CVE published
November 7, 2025 Record updated