Red Hat Security Advisory 2013-0588-01 - The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security. It was discovered that GnuTLS leaked timing information when decrypting TLS/SSL protocol encrypted records when CBC-mode cipher suites were used. A remote attacker could possibly use this flaw to retrieve plain text from the encrypted packets by using a TLS/SSL server as a padding oracle. Users of GnuTLS are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all applications linked to the GnuTLS library must be restarted, or the system rebooted.
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Red Hat Security Advisory
Synopsis: Moderate: gnutls security update
Advisory ID: RHSA-2013:0588-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0588.html
Issue date: 2013-03-04
CVE Names: CVE-2013-1619
=====================================================================
1. Summary:
Updated gnutls packages that fix one security issue are now available for
Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. 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
3. Description:
The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS).
It was discovered that GnuTLS leaked timing information when decrypting
TLS/SSL protocol encrypted records when CBC-mode cipher suites were used.
A remote attacker could possibly use this flaw to retrieve plain text from
the encrypted packets by using a TLS/SSL server as a padding oracle.
(CVE-2013-1619)
Users of GnuTLS are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to take
effect, all applications linked to the GnuTLS library must be restarted,
or the system rebooted.
4. 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
5. Bugs fixed (http://bugzilla.redhat.com/):
908238 - CVE-2013-1619 gnutls: TLS CBC padding timing attack (lucky-13)
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/gnutls-1.4.1-10.el5_9.1.src.rpm
i386:
gnutls-1.4.1-10.el5_9.1.i386.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-utils-1.4.1-10.el5_9.1.i386.rpm
x86_64:
gnutls-1.4.1-10.el5_9.1.i386.rpm
gnutls-1.4.1-10.el5_9.1.x86_64.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.x86_64.rpm
gnutls-utils-1.4.1-10.el5_9.1.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/gnutls-1.4.1-10.el5_9.1.src.rpm
i386:
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-devel-1.4.1-10.el5_9.1.i386.rpm
x86_64:
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.x86_64.rpm
gnutls-devel-1.4.1-10.el5_9.1.i386.rpm
gnutls-devel-1.4.1-10.el5_9.1.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/gnutls-1.4.1-10.el5_9.1.src.rpm
i386:
gnutls-1.4.1-10.el5_9.1.i386.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-devel-1.4.1-10.el5_9.1.i386.rpm
gnutls-utils-1.4.1-10.el5_9.1.i386.rpm
ia64:
gnutls-1.4.1-10.el5_9.1.i386.rpm
gnutls-1.4.1-10.el5_9.1.ia64.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.ia64.rpm
gnutls-devel-1.4.1-10.el5_9.1.ia64.rpm
gnutls-utils-1.4.1-10.el5_9.1.ia64.rpm
ppc:
gnutls-1.4.1-10.el5_9.1.ppc.rpm
gnutls-1.4.1-10.el5_9.1.ppc64.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.ppc.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.ppc64.rpm
gnutls-devel-1.4.1-10.el5_9.1.ppc.rpm
gnutls-devel-1.4.1-10.el5_9.1.ppc64.rpm
gnutls-utils-1.4.1-10.el5_9.1.ppc.rpm
s390x:
gnutls-1.4.1-10.el5_9.1.s390.rpm
gnutls-1.4.1-10.el5_9.1.s390x.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.s390.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.s390x.rpm
gnutls-devel-1.4.1-10.el5_9.1.s390.rpm
gnutls-devel-1.4.1-10.el5_9.1.s390x.rpm
gnutls-utils-1.4.1-10.el5_9.1.s390x.rpm
x86_64:
gnutls-1.4.1-10.el5_9.1.i386.rpm
gnutls-1.4.1-10.el5_9.1.x86_64.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.i386.rpm
gnutls-debuginfo-1.4.1-10.el5_9.1.x86_64.rpm
gnutls-devel-1.4.1-10.el5_9.1.i386.rpm
gnutls-devel-1.4.1-10.el5_9.1.x86_64.rpm
gnutls-utils-1.4.1-10.el5_9.1.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
i386:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-utils-2.8.5-10.el6_4.1.i686.rpm
x86_64:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-utils-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
i386:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
x86_64:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
x86_64:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-utils-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
x86_64:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
i386:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-utils-2.8.5-10.el6_4.1.i686.rpm
ppc64:
gnutls-2.8.5-10.el6_4.1.ppc.rpm
gnutls-2.8.5-10.el6_4.1.ppc64.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.ppc.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.ppc64.rpm
gnutls-devel-2.8.5-10.el6_4.1.ppc.rpm
gnutls-devel-2.8.5-10.el6_4.1.ppc64.rpm
gnutls-utils-2.8.5-10.el6_4.1.ppc64.rpm
s390x:
gnutls-2.8.5-10.el6_4.1.s390.rpm
gnutls-2.8.5-10.el6_4.1.s390x.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.s390.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.s390x.rpm
gnutls-devel-2.8.5-10.el6_4.1.s390.rpm
gnutls-devel-2.8.5-10.el6_4.1.s390x.rpm
gnutls-utils-2.8.5-10.el6_4.1.s390x.rpm
x86_64:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-utils-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
i386:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
ppc64:
gnutls-debuginfo-2.8.5-10.el6_4.1.ppc.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.ppc64.rpm
gnutls-guile-2.8.5-10.el6_4.1.ppc.rpm
gnutls-guile-2.8.5-10.el6_4.1.ppc64.rpm
s390x:
gnutls-debuginfo-2.8.5-10.el6_4.1.s390.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.s390x.rpm
gnutls-guile-2.8.5-10.el6_4.1.s390.rpm
gnutls-guile-2.8.5-10.el6_4.1.s390x.rpm
x86_64:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
i386:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-utils-2.8.5-10.el6_4.1.i686.rpm
x86_64:
gnutls-2.8.5-10.el6_4.1.i686.rpm
gnutls-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-devel-2.8.5-10.el6_4.1.i686.rpm
gnutls-devel-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-utils-2.8.5-10.el6_4.1.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/gnutls-2.8.5-10.el6_4.1.src.rpm
i386:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
x86_64:
gnutls-debuginfo-2.8.5-10.el6_4.1.i686.rpm
gnutls-debuginfo-2.8.5-10.el6_4.1.x86_64.rpm
gnutls-guile-2.8.5-10.el6_4.1.i686.rpm
gnutls-guile-2.8.5-10.el6_4.1.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
7. References:
https://www.redhat.com/security/data/cve/CVE-2013-1619.html
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
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