An update for libgcrypt is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which

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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: libgcrypt security update
Advisory ID:       RHSA-2016:2674-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:2674.html
Issue date:        2016-11-08
CVE Names:         CVE-2016-6313 
====================================================================
1. Summary:

An update for libgcrypt is now available for Red Hat Enterprise Linux 6 and
Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - 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 (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. Description:

The libgcrypt library provides general-purpose implementations of various
cryptographic algorithms.

Security Fix(es):

* A design flaw was found in the libgcrypt PRNG (Pseudo-Random Number
Generator). An attacker able to obtain the first 580 bytes of the PRNG
output could predict the following 20 bytes. (CVE-2016-6313)

Red Hat would like to thank Felix Dörre and Vladimir Klebanov for reporting
this issue.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

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

1366105 - CVE-2016-6313 libgcrypt: PRNG output is predictable

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
libgcrypt-1.4.5-12.el6_8.src.rpm

i386:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm

x86_64:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.x86_64.rpm

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

i386:
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm

x86_64:
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.x86_64.rpm

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

Source:
libgcrypt-1.4.5-12.el6_8.src.rpm

x86_64:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.x86_64.rpm

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

x86_64:
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
libgcrypt-1.4.5-12.el6_8.src.rpm

i386:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm

ppc64:
libgcrypt-1.4.5-12.el6_8.ppc.rpm
libgcrypt-1.4.5-12.el6_8.ppc64.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.ppc.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.ppc64.rpm
libgcrypt-devel-1.4.5-12.el6_8.ppc.rpm
libgcrypt-devel-1.4.5-12.el6_8.ppc64.rpm

s390x:
libgcrypt-1.4.5-12.el6_8.s390.rpm
libgcrypt-1.4.5-12.el6_8.s390x.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.s390.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.s390x.rpm
libgcrypt-devel-1.4.5-12.el6_8.s390.rpm
libgcrypt-devel-1.4.5-12.el6_8.s390x.rpm

x86_64:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
libgcrypt-1.4.5-12.el6_8.src.rpm

i386:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm

x86_64:
libgcrypt-1.4.5-12.el6_8.i686.rpm
libgcrypt-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.i686.rpm
libgcrypt-debuginfo-1.4.5-12.el6_8.x86_64.rpm
libgcrypt-devel-1.4.5-12.el6_8.i686.rpm
libgcrypt-devel-1.4.5-12.el6_8.x86_64.rpm

Red Hat Enterprise Linux Client (v. 7):

Source:
libgcrypt-1.5.3-13.el7_3.1.src.rpm

x86_64:
libgcrypt-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
libgcrypt-debuginfo-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
libgcrypt-1.5.3-13.el7_3.1.src.rpm

x86_64:
libgcrypt-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
libgcrypt-debuginfo-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
libgcrypt-1.5.3-13.el7_3.1.src.rpm

aarch64:
libgcrypt-1.5.3-13.el7_3.1.aarch64.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.aarch64.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.aarch64.rpm

ppc64:
libgcrypt-1.5.3-13.el7_3.1.ppc.rpm
libgcrypt-1.5.3-13.el7_3.1.ppc64.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.ppc.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.ppc64.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.ppc.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.ppc64.rpm

ppc64le:
libgcrypt-1.5.3-13.el7_3.1.ppc64le.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.ppc64le.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.ppc64le.rpm

s390x:
libgcrypt-1.5.3-13.el7_3.1.s390.rpm
libgcrypt-1.5.3-13.el7_3.1.s390x.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.s390.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.s390x.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.s390.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.s390x.rpm

x86_64:
libgcrypt-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
libgcrypt-1.5.3-13.el7_3.1.src.rpm

x86_64:
libgcrypt-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-debuginfo-1.5.3-13.el7_3.1.x86_64.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.i686.rpm
libgcrypt-devel-1.5.3-13.el7_3.1.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

7. References:

https://access.redhat.com/security/cve/CVE-2016-6313
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 2016 Red Hat, Inc.
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