GLSA-201703-05 : GNU Libtasn1: Denial of Service

Medium Nessus Plugin ID 99012


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-201703-05 (GNU Libtasn1: Denial of Service)

Libtasn1 does not correctly handle certain malformed DER certificates.
Impact :

A remote attacker could entice a user or automated system to process a specially crafted certificate using Libtasn1, resulting in a Denial of Service condition.
Workaround :

There is no known workaround at this time.


All Libtasn1 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libtasn1-4.8'

See Also

Plugin Details

Severity: Medium

ID: 99012

File Name: gentoo_GLSA-201703-05.nasl

Version: $Revision: 3.1 $

Type: local

Published: 2017/03/28

Modified: 2017/03/28

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P


Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libtasn1, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2017/03/28

Reference Information

CVE: CVE-2016-4008

GLSA: 201703-05