[RHSA-2013:1457-01] Moderate: libgcrypt security update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: libgcrypt security update

Advisory ID: RHSA-2013:1457-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1457.html

Issue date: 2013-10-24

CVE Names: CVE-2013-4242

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1. Summary:

 

An updated libgcrypt package that fixes one security issue is 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 Workstation (v. 6) - i386, x86_64

 

3. Description:

 

The libgcrypt library provides general-purpose implementations of various

cryptographic algorithms.

 

It was found that GnuPG was vulnerable to the Yarom/Falkner flush+reload

cache side-channel attack on the RSA secret exponent. An attacker able to

execute a process on the logical CPU that shared the L3 cache with the

GnuPG process (such as a different local user or a user of a KVM guest

running on the same host with the kernel same-page merging functionality

enabled) could possibly use this flaw to obtain portions of the RSA secret

key. (CVE-2013-4242)

 

All libgcrypt users are advised to upgrade to this updated package, which

contains a backported patch to correct this issue.

 

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/site/articles/11258

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

988589 - CVE-2013-4242 GnuPG susceptible to Yarom/Falkner flush+reload cache side-channel attack

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libgcrypt-1.4.4-7.el5_10.src.rpm

 

i386:

libgcrypt-1.4.4-7.el5_10.i386.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

 

x86_64:

libgcrypt-1.4.4-7.el5_10.i386.rpm

libgcrypt-1.4.4-7.el5_10.x86_64.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.x86_64.rpm

 

RHEL Desktop Workstation (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libgcrypt-1.4.4-7.el5_10.src.rpm

 

i386:

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

libgcrypt-devel-1.4.4-7.el5_10.i386.rpm

 

x86_64:

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.x86_64.rpm

libgcrypt-devel-1.4.4-7.el5_10.i386.rpm

libgcrypt-devel-1.4.4-7.el5_10.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libgcrypt-1.4.4-7.el5_10.src.rpm

 

i386:

libgcrypt-1.4.4-7.el5_10.i386.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

libgcrypt-devel-1.4.4-7.el5_10.i386.rpm

 

ia64:

libgcrypt-1.4.4-7.el5_10.i386.rpm

libgcrypt-1.4.4-7.el5_10.ia64.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.ia64.rpm

libgcrypt-devel-1.4.4-7.el5_10.ia64.rpm

 

ppc:

libgcrypt-1.4.4-7.el5_10.ppc.rpm

libgcrypt-1.4.4-7.el5_10.ppc64.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.ppc.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.ppc64.rpm

libgcrypt-devel-1.4.4-7.el5_10.ppc.rpm

libgcrypt-devel-1.4.4-7.el5_10.ppc64.rpm

 

s390x:

libgcrypt-1.4.4-7.el5_10.s390.rpm

libgcrypt-1.4.4-7.el5_10.s390x.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.s390.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.s390x.rpm

libgcrypt-devel-1.4.4-7.el5_10.s390.rpm

libgcrypt-devel-1.4.4-7.el5_10.s390x.rpm

 

x86_64:

libgcrypt-1.4.4-7.el5_10.i386.rpm

libgcrypt-1.4.4-7.el5_10.x86_64.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.i386.rpm

libgcrypt-debuginfo-1.4.4-7.el5_10.x86_64.rpm

libgcrypt-devel-1.4.4-7.el5_10.i386.rpm

libgcrypt-devel-1.4.4-7.el5_10.x86_64.rpm

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libgcrypt-1.4.5-11.el6_4.src.rpm

 

i386:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

 

x86_64:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.x86_64.rpm

 

Red Hat Enterprise Linux Desktop Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libgcrypt-1.4.5-11.el6_4.src.rpm

 

i386:

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

 

x86_64:

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libgcrypt-1.4.5-11.el6_4.src.rpm

 

x86_64:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.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/libgcrypt-1.4.5-11.el6_4.src.rpm

 

x86_64:

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libgcrypt-1.4.5-11.el6_4.src.rpm

 

i386:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

 

ppc64:

libgcrypt-1.4.5-11.el6_4.ppc.rpm

libgcrypt-1.4.5-11.el6_4.ppc64.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.ppc.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.ppc64.rpm

libgcrypt-devel-1.4.5-11.el6_4.ppc.rpm

libgcrypt-devel-1.4.5-11.el6_4.ppc64.rpm

 

s390x:

libgcrypt-1.4.5-11.el6_4.s390.rpm

libgcrypt-1.4.5-11.el6_4.s390x.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.s390.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.s390x.rpm

libgcrypt-devel-1.4.5-11.el6_4.s390.rpm

libgcrypt-devel-1.4.5-11.el6_4.s390x.rpm

 

x86_64:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libgcrypt-1.4.5-11.el6_4.src.rpm

 

i386:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

 

x86_64:

libgcrypt-1.4.5-11.el6_4.i686.rpm

libgcrypt-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.i686.rpm

libgcrypt-debuginfo-1.4.5-11.el6_4.x86_64.rpm

libgcrypt-devel-1.4.5-11.el6_4.i686.rpm

libgcrypt-devel-1.4.5-11.el6_4.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-2013-4242.html

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2013 Red Hat, Inc.

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