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Red Hat 6: RHSA-2013:0883-01 Important: Gnutls DoS Security Fix

red hat
Calendar Grey May 30, 2013
Scroller Redhat
The latest gnutls update for Red Hat addresses critical vulnerabilities in Enterprise Linux versions 5 and 6. Protect your infrastructure by applying these security patches.
Updated gnutls packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6

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/knowledge/articles/11258

Summary

The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS).
It was discovered that the fix for the CVE-2013-1619 issue released via RHSA-2013:0588 introduced a regression in the way GnuTLS decrypted TLS/SSL encrypted records when CBC-mode cipher suites were used. A remote attacker could possibly use this flaw to crash a server or client application that uses GnuTLS. (CVE-2013-2116)
Users of GnuTLS are advised to upgrade to these updated packages, which correct this issue. For the update to take effect, all applications linked to the GnuTLS library must be restarted.

Topics%20covered

Topics Covered

security advisory security update red hat remote attack important gnutls dos

References

https://access.redhat.com/security/cve/CVE-2013-2116 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/errata/RHSA-2013:0588.html

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: gnutls-1.4.1-10.el5_9.2.i386.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.i386.rpm gnutls-utils-1.4.1-10.el5_9.2.i386.rpm
x86_64: gnutls-1.4.1-10.el5_9.2.i386.rpm gnutls-1.4.1-10.el5_9.2.x86_64.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.i386.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.x86_64.rpm gnutls-utils-1.4.1-10.el5_9.2.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: gnutls-debuginfo-1.4.1-10.el5_9.2.i386.rpm gnutls-devel-1.4.1-10.el5_9.2.i386.rpm
x86_64: gnutls-debuginfo-1.4.1-10.el5_9.2.i386.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.x86_64.rpm gnutls-devel-1.4.1-10.el5_9.2.i386.rpm gnutls-devel-1.4.1-10.el5_9.2.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: gnutls-1.4.1-10.el5_9.2.i386.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.i386.rpm gnutls-devel-1.4.1-10.el5_9.2.i386.rpm gnutls-utils-1.4.1-10.el5_9.2.i386.rpm
ia64: gnutls-1.4.1-10.el5_9.2.i386.rpm gnutls-1.4.1-10.el5_9.2.ia64.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.i386.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.ia64.rpm gnutls-devel-1.4.1-10.el5_9.2.ia64.rpm gnutls-utils-1.4.1-10.el5_9.2.ia64.rpm
ppc: gnutls-1.4.1-10.el5_9.2.ppc.rpm gnutls-1.4.1-10.el5_9.2.ppc64.rpm gnutls-debuginfo-1.4.1-10.el5_9.2.ppc.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:0883-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0883.html
Issue date: 2013-05-30

Topic

Updated gnutls packages that fix one security issue are now available forRed Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory security update red hat remote attack important gnutls dos

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

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

966754 - CVE-2013-2116 gnutls: out of bounds read in _gnutls_ciphertext2compressed (GNUTLS-SA-2013-2)

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