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Red Hat 5: RHSA-2010:0603-01 Moderate: gnupg2 Use-After-Free Issue

red hat
Calendar Grey August 4, 2010
Dist Redhat Esm H88
Fedora releases new version of openssl package tackling critical vulnerability, along with comprehensive security advisory.
An updated gnupg2 package that fixes one security issue is now available for Red Hat Enterprise Linux 5

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

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat update exploit gnupg2 certificate issue

References

https://access.redhat.com/security/cve/CVE-2010-2547 https://access.redhat.com/security/updates/classification#moderate

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


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

Topic

An updated gnupg2 package that fixes one security issue is now availablefor Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat update exploit gnupg2 certificate issue

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

Bugs Fixed

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

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