Debian DSA-2621-1 : openssl - several vulnerabilities

Medium Nessus Plugin ID 64623

Synopsis

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

Description

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

- CVE-2013-0166 OpenSSL does not properly perform signature verification for OCSP responses, which allows remote attackers to cause a denial of service via an invalid key.

- 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.

Solution

Upgrade the openssl packages.

For the stable distribution (squeeze), these problems have been fixed in version 0.9.8o-4squeeze14.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699889

https://security-tracker.debian.org/tracker/CVE-2013-0166

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

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

https://www.debian.org/security/2013/dsa-2621

Plugin Details

Severity: Medium

ID: 64623

File Name: debian_DSA-2621.nasl

Version: 1.16

Type: local

Agent: unix

Published: 2013/02/14

Updated: 2020/03/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/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:openssl, 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-2013-0166, CVE-2013-0169

BID: 57755, 57778

DSA: 2621