Use After Free Affecting openswan package, versions <0:2.6.32-4.el6_1.4


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.09% (80th percentile)

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  • Snyk IDSNYK-RHEL6-OPENSWAN-1433579
  • published26 Jul 2021
  • disclosed28 Oct 2011

Introduced: 28 Oct 2011

CVE-2011-4073  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade RHEL:6 openswan to version 0:2.6.32-4.el6_1.4 or higher.
This issue was patched in RHSA-2011:1422.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openswan package and not the openswan package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

Use-after-free vulnerability in the cryptographic helper handler functionality in Openswan 2.3.0 through 2.6.36 allows remote authenticated users to cause a denial of service (pluto IKE daemon crash) via vectors related to the (1) quick_outI1_continue and (2) quick_outI1 functions.

CVSS Base Scores

version 3.1