Red Hat: 2014:0247-01: gnutls: Important Advisory
Summary
The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS).
It was discovered that GnuTLS did not correctly handle certain errors that
could occur during the verification of an X.509 certificate, causing it to
incorrectly report a successful verification. An attacker could use this
flaw to create a specially crafted certificate that could be accepted by
GnuTLS as valid for a site chosen by the attacker. (CVE-2014-0092)
A flaw was found in the way GnuTLS handled version 1 X.509 certificates.
An attacker able to obtain a version 1 certificate from a trusted
certificate authority could use this flaw to issue certificates for other
sites that would be accepted by GnuTLS as valid. (CVE-2009-5138)
The CVE-2014-0092 issue was discovered by Nikos Mavrogiannopoulos of the
Red Hat Security Technologies Team.
Users of GnuTLS are advised to upgrade to these updated packages, which
correct these issues. For the update to take effect, all applications
linked to the GnuTLS library must be restarted.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258
References
https://www.redhat.com/security/data/cve/CVE-2009-5138.html https://www.redhat.com/security/data/cve/CVE-2014-0092.html https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386:
gnutls-1.4.1-14.el5_10.i386.rpm
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-utils-1.4.1-14.el5_10.i386.rpm
x86_64:
gnutls-1.4.1-14.el5_10.i386.rpm
gnutls-1.4.1-14.el5_10.x86_64.rpm
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-debuginfo-1.4.1-14.el5_10.x86_64.rpm
gnutls-utils-1.4.1-14.el5_10.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386:
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-devel-1.4.1-14.el5_10.i386.rpm
x86_64:
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-debuginfo-1.4.1-14.el5_10.x86_64.rpm
gnutls-devel-1.4.1-14.el5_10.i386.rpm
gnutls-devel-1.4.1-14.el5_10.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386:
gnutls-1.4.1-14.el5_10.i386.rpm
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-devel-1.4.1-14.el5_10.i386.rpm
gnutls-utils-1.4.1-14.el5_10.i386.rpm
ia64:
gnutls-1.4.1-14.el5_10.i386.rpm
gnutls-1.4.1-14.el5_10.ia64.rpm
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-debuginfo-1.4.1-14.el5_10.ia64.rpm
gnutls-devel-1.4.1-14.el5_10.ia64.rpm
gnutls-utils-1.4.1-14.el5_10.ia64.rpm
ppc:
gnutls-1.4.1-14.el5_10.ppc.rpm
gnutls-1.4.1-14.el5_10.ppc64.rpm
gnutls-debuginfo-1.4.1-14.el5_10.ppc.rpm
gnutls-debuginfo-1.4.1-14.el5_10.ppc64.rpm
gnutls-devel-1.4.1-14.el5_10.ppc.rpm
gnutls-devel-1.4.1-14.el5_10.ppc64.rpm
gnutls-utils-1.4.1-14.el5_10.ppc.rpm
s390x:
gnutls-1.4.1-14.el5_10.s390.rpm
gnutls-1.4.1-14.el5_10.s390x.rpm
gnutls-debuginfo-1.4.1-14.el5_10.s390.rpm
gnutls-debuginfo-1.4.1-14.el5_10.s390x.rpm
gnutls-devel-1.4.1-14.el5_10.s390.rpm
gnutls-devel-1.4.1-14.el5_10.s390x.rpm
gnutls-utils-1.4.1-14.el5_10.s390x.rpm
x86_64:
gnutls-1.4.1-14.el5_10.i386.rpm
gnutls-1.4.1-14.el5_10.x86_64.rpm
gnutls-debuginfo-1.4.1-14.el5_10.i386.rpm
gnutls-debuginfo-1.4.1-14.el5_10.x86_64.rpm
gnutls-devel-1.4.1-14.el5_10.i386.rpm
gnutls-devel-1.4.1-14.el5_10.x86_64.rpm
gnutls-utils-1.4.1-14.el5_10.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
Topic
Updated gnutls packages that fix two security issues are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as havingImportant security impact. Common Vulnerability Scoring System (CVSS) basescores, which give detailed severity ratings, are available for eachvulnerability from the CVE links in the References section.
Topic
Relevant Releases Architectures
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Bugs Fixed
1069301 - CVE-2009-5138 gnutls: incorrect handling of V1 intermediate certificates
1069865 - CVE-2014-0092 gnutls: incorrect error handling in certificate verification (GNUTLS-SA-2014-2)