GLSA 200612-03: GnuPG: Multiple vulnerabilities
Severity: | normal |
Title: | GnuPG: Multiple vulnerabilities |
Date: | 12/10/2006 |
Bugs: |
|
ID: | 200612-03 |
Synopsis
GnuPG is vulnerable to a buffer overflow and an erroneous function pointer dereference that can result in the execution of arbitrary code.Background
The GNU Privacy Guard, GnuPG, is a free replacement for the PGP suite of cryptographic software.
Affected packages
Package | Vulnerable | Unaffected | Architecture(s) |
---|---|---|---|
app-crypt/gnupg | < 1.4.6 | >= 1.4.6 | All supported architectures |
Description
Hugh Warrington has reported a boundary error in GnuPG, in the "ask_outfile_name()" function from openfile.c: the make_printable_string() function could return a string longer than expected. Additionally, Tavis Ormandy of the Gentoo Security Team reported a design error in which a function pointer can be incorrectly dereferenced.
Impact
A remote attacker could entice a user to interactively use GnuPG on a crafted file and trigger the boundary error, which will result in a buffer overflow. They could also entice a user to process a signed or encrypted file with gpg or gpgv, possibly called through another application like a mail client, to trigger the dereference error. Both of these vulnerabilities would result in the execution of arbitrary code with the permissions of the user running GnuPG. gpg-agent, gpgsm and other tools are not affected.
Workaround
There is no known workaround at this time.
Resolution
All GnuPG users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose "=app-crypt/gnupg-1.4*"
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.