GLSA-200901-10 : GnuTLS: Certificate validation error

This script is Copyright (C) 2009-2014 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-200901-10
(GnuTLS: Certificate validation error)

Martin von Gagern reported that the _gnutls_x509_verify_certificate()
function in lib/x509/verify.c trusts certificate chains in which the
last certificate is an arbitrary trusted, self-signed certificate.

Impact :

A remote attacker could exploit this vulnerability and spoof arbitrary
names to conduct Man-In-The-Middle attacks and intercept sensitive
information.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200901-10.xml

Solution :

All GnuTLS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-libs/gnutls-2.4.1-r2'

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 35379 (gentoo_GLSA-200901-10.nasl)

Bugtraq ID:

CVE ID: CVE-2008-4989