Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()

5.5 CVSS

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Red Hat would like to thank Lin Ma (ZJU & Ant Security Light-Year Lab) for reporting this issue.

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Affected Vendor

Red Hat

View all reports →

Affected Software

Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Virtualization 4 for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7

Vulnerable Versions:

0:4.18.0-513.5.1.rt7.307.el8_9, 0:4.18.0-513.5.1.el8_9, 0:4.18.0-372.87.1.el8_6, 0:4.18.0-477.43.1.el8_8, 0:5.14.0-362.8.1.el9_3