Resource Exhaustion Affecting libreswan package, versions <0:4.6-3.el9_0.3


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.94% (57th percentile)

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  • Snyk IDSNYK-RHEL9-LIBRESWAN-8690239
  • published8 Feb 2025
  • disclosed11 Mar 2024

Introduced: 11 Mar 2024

CVE-2024-2357  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:9 libreswan to version 0:4.6-3.el9_0.3 or higher.
This issue was patched in RHBA-2024:11525.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreswan package and not the libreswan package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service.

CVSS Base Scores

version 3.1