GLSA-200905-04 : GnuTLS: Multiple vulnerabilities

This script is Copyright (C) 2009-2017 Tenable Network Security, Inc.

Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200905-04
(GnuTLS: Multiple vulnerabilities)

The following vulnerabilities were found in GnuTLS:
Miroslav Kratochvil reported that lib/pk-libgcrypt.c does not
properly handle corrupt DSA signatures, possibly leading to a
double-free vulnerability (CVE-2009-1415).
Simon Josefsson
reported that GnuTLS generates RSA keys stored in DSA structures when
creating a DSA key (CVE-2009-1416).
Romain Francoise reported
that the _gnutls_x509_verify_certificate() function in
lib/x509/verify.c does not perform time checks, resulting in the
'gnutls-cli' program accepting X.509 certificates with validity times
in the past or future (CVE-2009-1417).

Impact :

A remote attacker could entice a user or automated system to process a
specially crafted DSA certificate, possibly resulting in a Denial of
Service condition. NOTE: This issue might have other unspecified impact
including the execution of arbitrary code. Furthermore, a remote
attacker could spoof signatures on certificates and the 'gnutls-cli'
application can be tricked into accepting an invalid certificate.

Workaround :

There is no known workaround at this time.

See also :

Solution :

All GnuTLS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-libs/gnutls-2.6.6'

Risk factor :

High / CVSS Base Score : 7.5
CVSS Temporal Score : 6.5
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 38885 (gentoo_GLSA-200905-04.nasl)

Bugtraq ID:

CVE ID: CVE-2009-1415

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