Debian DSA-2622-1 : polarssl - several vulnerabilities

Medium Nessus Plugin ID 64624

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's different from CVSS.

VPR Score: 4.4

Synopsis

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

Description

Multiple vulnerabilities have been found in PolarSSL. The Common Vulnerabilities and Exposures project identifies the following issues :

- CVE-2013-0169 A timing side channel attack has been found in CBC padding allowing an attacker to recover pieces of plaintext via statistical analysis of crafted packages, known as the 'Lucky Thirteen' issue.

- CVE-2013-1621 An array index error might allow remote attackers to cause a denial of service via vectors involving a crafted padding-length value during validation of CBC padding in a TLS session.

- CVE-2013-1622 Malformed CBC data in a TLS session could allow remote attackers to conduct distinguishing attacks via statistical analysis of timing side-channel data for crafted packets.

Solution

Upgrade the polarssl packages.

For the stable distribution (squeeze), these problems have been fixed in version 0.12.1-1squeeze1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699887

https://security-tracker.debian.org/tracker/CVE-2013-0169

https://security-tracker.debian.org/tracker/CVE-2013-1621

https://security-tracker.debian.org/tracker/CVE-2013-1622

https://packages.debian.org/source/squeeze/polarssl

https://www.debian.org/security/2013/dsa-2622

Plugin Details

Severity: Medium

ID: 64624

File Name: debian_DSA-2622.nasl

Version: 1.24

Type: local

Agent: unix

Published: 2013/02/14

Updated: 2020/03/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 4.4

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:polarssl, cpe:/o:debian:debian_linux:6.0

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2013/02/13

Reference Information

CVE: CVE-2013-0169, CVE-2013-1621

BID: 57776, 57778, 57781

DSA: 2622