An updated gnupg2 package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score,

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

Synopsis:          Moderate: gnupg2 security update
Advisory ID:       RHSA-2010:0603-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2010:0603.html
Issue date:        2010-08-04
CVE Names:         CVE-2010-2547 
====================================================================
1. Summary:

An updated gnupg2 package that fixes one security issue is now available
for Red Hat Enterprise Linux 5.

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:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and
creating digital signatures, compliant with the proposed OpenPGP Internet
standard and the S/MIME standard.

A use-after-free flaw was found in the way gpgsm, a Cryptographic Message
Syntax (CMS) encryption and signing tool, handled X.509 certificates with
a large number of Subject Alternate Names. A specially-crafted X.509
certificate could, when imported, cause gpgsm to crash or, possibly,
execute arbitrary code. (CVE-2010-2547)

All gnupg2 users should 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

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

618156 - CVE-2010-2547 GnuPG 2: use-after-free when importing certificate with many alternate names

6. Package List:

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

Source:

i386:
gnupg2-2.0.10-3.el5_5.1.i386.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.i386.rpm

x86_64:
gnupg2-2.0.10-3.el5_5.1.x86_64.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
gnupg2-2.0.10-3.el5_5.1.i386.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.i386.rpm

ia64:
gnupg2-2.0.10-3.el5_5.1.ia64.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.ia64.rpm

ppc:
gnupg2-2.0.10-3.el5_5.1.ppc.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.ppc.rpm

s390x:
gnupg2-2.0.10-3.el5_5.1.s390x.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.s390x.rpm

x86_64:
gnupg2-2.0.10-3.el5_5.1.x86_64.rpm
gnupg2-debuginfo-2.0.10-3.el5_5.1.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://access.redhat.com/security/cve/CVE-2010-2547
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 2010 Red Hat, Inc.
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