GLSA 201110-15: GnuPG: User-assisted execution of arbitrary code
Severity: | normal |
Title: | GnuPG: User-assisted execution of arbitrary code |
Date: | 10/22/2011 |
Bugs: |
|
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 | Architecture(s) |
---|---|---|---|
app-crypt/gnupg | < 2.0.16-r1 | >= 2.0.16-r1 | All supported architectures |
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
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
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 2010 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.