#VU40705 Input validation error in libreswan - CVE-2015-3204
Published: July 1, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40705
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2015-3204
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libreswan
libreswan
Software vendor:
libreswan.org
libreswan.org
Description
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.
Remediation
Install update from vendor's website.