Debian DSA-3408-1 : gnutls26 - security update

medium Nessus Plugin ID 87162


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


It was discovered that GnuTLS, a library implementing the TLS and SSL protocols, incorrectly validates the first byte of padding in CBC modes. A remote attacker can possibly take advantage of this flaw to perform a padding oracle attack.


Upgrade the gnutls26 packages.

For the oldstable distribution (wheezy), this problem has been fixed in version 2.12.20-8+deb7u4.

See Also

Plugin Details

Severity: Medium

ID: 87162

File Name: debian_DSA-3408.nasl

Version: 2.8

Type: local

Agent: unix

Published: 12/2/2015

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

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


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:H/I:N/A:N

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:gnutls26, cpe:/o:debian:debian_linux:7.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/1/2015

Vulnerability Publication Date: 12/20/2019

Reference Information

CVE: CVE-2015-8313

DSA: 3408