GLSA-200806-08 : OpenSSL: Denial of Service

Medium Nessus Plugin ID 33244

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200806-08 (OpenSSL: Denial of Service)

Ossi Herrala and Jukka Taimisto of Codenomicon discovered two vulnerabilities:
A double free() call in the TLS server name extension (CVE-2008-0891).
The OpenSSL client code does not properly handle servers that omit the Server Key Exchange message in the TLS handshake (CVE-2008-1672).
Impact :

A remote attacker could connect to a vulnerable server, or entice a daemon to connect to a malicious server, causing a Denial of Service of the daemon in both cases.
Workaround :

There is no known workaround at this time.

Solution

All OpenSSL users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/openssl-0.9.8g-r2'

See Also

https://security.gentoo.org/glsa/200806-08

Plugin Details

Severity: Medium

ID: 33244

File Name: gentoo_GLSA-200806-08.nasl

Version: 1.17

Type: local

Published: 2008/06/24

Updated: 2019/08/02

Dependencies: 12634

Risk Information

Risk Factor: Medium

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:gentoo:linux:openssl, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2008/06/23

Reference Information

CVE: CVE-2008-0891, CVE-2008-1672

GLSA: 200806-08

CWE: 189, 287