Input validation error in libreswan - CVE-2015-3204

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Main Vulnerability Database Vulnerabilities #VU40705

Input validation error in libreswan - CVE-2015-3204

Published: July 1, 2015 / Updated: August 9, 2020


Vulnerability identifier: #VU40705
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-3204
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

libreswan 3.9 through 3.12 allows remote attackers to cause a denial of service (daemon restart) via an IKEv1 packet with (1) unassigned bits set in the IPSEC DOI value or (2) the next payload value set to ISAKMP_NEXT_SAK.


Affected software

libreswan
Gentoo Linux
Fedora
libreswan

How to mitigate CVE-2015-3204

Install update from vendor's website.

libreswan - addressed in versions 3.13-1.el6, 3.13-1.fc21, 3.13-1.fc22

External References

Related Security Bulletins