GLSA-200901-10 : GnuTLS: Certificate validation error

Medium Nessus Plugin ID 35379


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


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.


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

See Also

Plugin Details

Severity: Medium

ID: 35379

File Name: gentoo_GLSA-200901-10.nasl

Version: $Revision: 1.10 $

Type: local

Published: 2009/01/15

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:gnutls, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2009/01/14

Reference Information

CVE: CVE-2008-4989

OSVDB: 49851

GLSA: 200901-10

CWE: 255