GLSA-201203-12 : OpenSSL: Multiple vulnerabilities

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


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-201203-12
(OpenSSL: Multiple vulnerabilities)

Multiple vulnerabilities have been found in OpenSSL:
Timing differences for decryption are exposed by CBC mode encryption
in OpenSSL&rsquo
s implementation of DTLS (CVE-2011-4108).
A policy check failure can result in a double-free error when
X509_V_FLAG_POLICY_CHECK is set (CVE-2011-4109).
Clients and servers using SSL 3.0 handshakes do not clear the block
cipher padding, allowing a record to contain up to 15 bytes of
uninitialized memory, which could include sensitive information
(CVE-2011-4576).
Assertion errors can occur during the handling of malformed X.509
certificates when OpenSSL is built with RFC 3779 support
(CVE-2011-4577).
A resource management error can occur when OpenSSL&rsquo
s server gated
cryptography (SGC) does not properly handle handshake restarts
(CVE-2011-4619).
Invalid parameters in the GOST block cipher are not properly handled
by the GOST ENGINE(CVE-2012-0027).
An incorrect fix for CVE-2011-4108 creates an unspecified
vulnerability for DTLS applications using OpenSSL (CVE-2012-0050).

Impact :

A remote attacker may be able to cause a Denial of Service or obtain
sensitive information, including plaintext passwords.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201203-12.xml

Solution :

All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-libs/openssl-1.0.0g'

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.1
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 58222 ()

Bugtraq ID: 51281
51563

CVE ID: CVE-2011-4108
CVE-2011-4109
CVE-2011-4576
CVE-2011-4577
CVE-2011-4619
CVE-2012-0027
CVE-2012-0050