Debian DSA-2162-1 : openssl - invalid memory access

Medium Nessus Plugin ID 51978

Synopsis

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

Description

Neel Mehta discovered that an incorrectly formatted ClientHello handshake message could cause OpenSSL to parse past the end of the message. This allows an attacker to crash an application using OpenSSL by triggering an invalid memory access. Additionally, some applications may be vulnerable to expose contents of a parsed OCSP nonce extension.

Packages in the oldstable distribution (lenny) are not affected by this problem.

Solution

Upgrade the openssl packages.

For the stable distribution (squeeze), this problem has been fixed in version 0.9.8o-4squeeze1.

See Also

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

https://www.debian.org/security/2011/dsa-2162

Plugin Details

Severity: Medium

ID: 51978

File Name: debian_DSA-2162.nasl

Version: 1.19

Type: local

Agent: unix

Published: 2011/02/15

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: 2011/02/14

Reference Information

CVE: CVE-2011-0014

BID: 46264

DSA: 2162