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Debian DSA-3568-1 : libtasn1-6 - security update

medium Nessus Plugin ID 90927

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Synopsis

The remote Debian host is missing a security-related update.

Description

Pascal Cuoq and Miod Vallat discovered that Libtasn1, a library to manage ASN.1 structures, does not correctly handle certain malformed DER certificates. A remote attacker can take advantage of this flaw to cause an application using the Libtasn1 library to hang, resulting in a denial of service.

Solution

Upgrade the libtasn1-6 packages.

For the stable distribution (jessie), this problem has been fixed in version 4.2-3+deb8u2.

See Also

https://packages.debian.org/source/jessie/libtasn1-6

https://www.debian.org/security/2016/dsa-3568

Plugin Details

Severity: Medium

ID: 90927

File Name: debian_DSA-3568.nasl

Version: 1.9

Type: local

Agent: unix

Published: 5/6/2016

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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 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: p-cpe:/a:debian:debian_linux:libtasn1-6, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 5/5/2016

Reference Information

CVE: CVE-2016-4008

DSA: 3568