Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 538
Alerts This Week
Warning Icon 1 538

RHEL 5: RHSA-2014:0247-01 Critical gnutls SSL Vulnerabilities Advisory

red hat
Calendar Grey March 3, 2014
Dist Redhat Esm H88
Critical GnuTLS security patch information for Red Hat Enterprise Linux, aiming to resolve various vulnerabilities and implement essential corrections.
Updated gnutls packages that fix two security issues are now available for Red Hat Enterprise Linux 5

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

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.

Topics%20covered

Topics Covered

security advisory red hat important gnutls ssl cryptographic certificate

References

https://access.redhat.com/security/cve/CVE-2009-5138 https://access.redhat.com/security/cve/CVE-2014-0092 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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:0247-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:0247.html
Issue date: 2014-03-03

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.

Topics%20covered

Topics Covered

security advisory red hat important gnutls ssl cryptographic certificate

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)

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.