GLSA-200510-11 : OpenSSL: SSL 2.0 protocol rollback

This script is Copyright (C) 2005-2014 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-200510-11
(OpenSSL: SSL 2.0 protocol rollback)

Applications setting the SSL_OP_MSIE_SSLV2_RSA_PADDING option (or the
SSL_OP_ALL option, that implies it) can be forced by a third-party to
fallback to the less secure SSL 2.0 protocol, even if both parties
support the more secure SSL 3.0 or TLS 1.0 protocols.

Impact :

A man-in-the-middle attacker can weaken the encryption used to
communicate between two parties, potentially revealing sensitive
information.

Workaround :

If possible, disable the use of SSL 2.0 in all OpenSSL-enabled
applications.

See also :

http://www.openssl.org/news/secadv_20051011.txt
http://www.gentoo.org/security/en/glsa/glsa-200510-11.xml

Solution :

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

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 20031 (gentoo_GLSA-200510-11.nasl)

Bugtraq ID:

CVE ID: CVE-2005-2969