Debian DSA-3334-1 : gnutls28 - security update

medium Nessus Plugin ID 85357
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 3.6

Synopsis

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

Description

Kurt Roeckx discovered that decoding a specific certificate with very long DistinguishedName (DN) entries leads to double free. A remote attacker can take advantage of this flaw by creating a specially crafted certificate that, when processed by an application compiled against GnuTLS, could cause the application to crash resulting in a denial of service.

Solution

Upgrade the gnutls28 packages.

For the stable distribution (jessie), this problem has been fixed in version 3.3.8-6+deb8u2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795068

https://packages.debian.org/source/jessie/gnutls28

https://www.debian.org/security/2015/dsa-3334

Plugin Details

Severity: Medium

ID: 85357

File Name: debian_DSA-3334.nasl

Version: 2.8

Type: local

Agent: unix

Published: 8/13/2015

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:gnutls28, 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: 8/12/2015

Reference Information

CVE: CVE-2015-6251

DSA: 3334