Mandriva Linux Security Advisory : openssl (MDVSA-2011:137)

This script is Copyright (C) 2011-2014 Tenable Network Security, Inc.

Synopsis :

The remote Mandriva Linux host is missing one or more security

Description :

Multiple vulnerabilities has been discovered and corrected in
openssl :

The elliptic curve cryptography (ECC) subsystem in OpenSSL 1.0.0d and
earlier, when the Elliptic Curve Digital Signature Algorithm (ECDSA)
is used for the ECDHE_ECDSA cipher suite, does not properly implement
curves over binary fields, which makes it easier for context-dependent
attackers to determine private keys via a timing attack and a lattice
calculation (CVE-2011-1945).

crypto/x509/x509_vfy.c in OpenSSL 1.0.x before 1.0.0e does not
initialize certain structure members, which makes it easier for remote
attackers to bypass CRL validation by using a nextUpdate value
corresponding to a time in the past (CVE-2011-3207).

The ephemeral ECDH ciphersuite functionality in OpenSSL 0.9.8 through
0.9.8s and 1.0.x before 1.0.0e does not ensure thread safety during
processing of handshake messages, which allows remote attackers to
cause a denial of service (application crash) via out-of-order
messages that violate the TLS protocol (CVE-2011-3210).

Packages for 2009.0 are provided as of the Extended Maintenance
Program. Please visit this link to learn more: products_id=490

The updated packages have been patched to correct these issues.

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
CVSS Temporal Score : 4.3
Public Exploit Available : false

Family: Mandriva Local Security Checks

Nessus Plugin ID: 56325 ()

Bugtraq ID: 47888

CVE ID: CVE-2011-1945

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