Debian DLA-331-1 : polarssl security update

medium Nessus Plugin ID 86552

Language:

Synopsis

The remote Debian host is missing a security update.

Description

A flaw was found in PolarSSl and mbed TLS :

When the client creates its ClientHello message, due to insufficient bounds checking it can overflow the heap-based buffer containing the message while writing some extensions. Two extensions in particular could be used by a remote attacker to trigger the overflow: the session ticket extension and the server name indication (SNI) extension.

Although most of the vulnerable code is not present in the Squeeze version, this upload contains at least a length check for incoming data.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: Medium

ID: 86552

File Name: debian_DLA-331.nasl

Version: 2.7

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/23/2015

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:6.0, p-cpe:/a:debian:debian_linux:libpolarssl-runtime, p-cpe:/a:debian:debian_linux:libpolarssl0, p-cpe:/a:debian:debian_linux:libpolarssl-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2015

Reference Information

CVE: CVE-2015-5291

Detections

Analytics