- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201110-15
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: GnuPG: User-assisted execution of arbitrary code
     Date: October 22, 2011
     Bugs: #329583
       ID: 201110-15

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
The GPGSM utility included in GnuPG contains a use-after-free
vulnerability that may allow an unauthenticated remote attacker to
execute arbitrary code.

Background
=========
The GNU Privacy Guard, GnuPG, is a free replacement for the PGP suite
of cryptographic software. The GPGSM utility in GnuPG is responsible
for processing X.509 certificates, signatures and encryption as well as
S/MIME messages.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-crypt/gnupg            < 2.0.16-r1              >= 2.0.16-r1
                                                                < 2.0

Description
==========
The GPGSM utility in GnuPG contains a use-after-free vulnerability that
may be exploited when importing a crafted X.509 certificate explicitly
or during the signature verification process.

Impact
=====
An unauthenticated remote attacker may execute arbitrary code with the
privileges of the user running GnuPG by enticing them to import a
crafted certificate.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All GnuPG 2.x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-crypt/gnupg-2.0.16-r1"

References
=========
[ 1 ] CVE-2010-2547
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2547

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/201110-15

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2011 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5/