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

medium Nessus Plugin ID 99012

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Synopsis

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

Description

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.

Solution

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

See Also

https://security.gentoo.org/glsa/201703-05

Plugin Details

Severity: Medium

ID: 99012

File Name: gentoo_GLSA-201703-05.nasl

Version: 3.3

Type: local

Published: 3/28/2017

Updated: 12/29/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2016-4008

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/28/2017

Reference Information

CVE: CVE-2016-4008

GLSA: 201703-05