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Test ID:1.3.6.1.4.1.25623.1.0.56301
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-252-1 (gnupg)
Summary:Ubuntu USN-252-1 (gnupg)
Description:
The remote host is missing an update to gnupg
announced via advisory USN-252-1.

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)
Ubuntu 5.04 (Hoary Hedgehog)
Ubuntu 5.10 (Breezy Badger)

The following packages are affected: gnupg

Tavis Ormandy discovered a potential weakness in the signature
verification of gnupg. gpgv and gpg --verify returned a successful
exit code even if the checked file did not have any signature at all.
The recommended way of checking the result is to evaluate the status
messages, but some third party applications might just check the exit
code for determining whether or not a signature is valid. These
applications could be tricked into erroneously reporting a valid
signature.

Please note that this does not affect the Ubuntu package signature
checks.

Solution:
The problem can be corrected by upgrading the affected package to
version 1.2.4-4ubuntu2.2 (for ubuntu 4.10), 1.2.5-3ubuntu5.2 (for
Ubuntu 5.04), or 1.4.1-1ubuntu1.1 (for Ubuntu 5.10). In general, a
standard system upgrade is sufficient to effect the necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-252-1

Risk factor : Medium
Cross-Ref: BugTraq ID: 16663
Common Vulnerability Exposure (CVE) ID: CVE-2006-0455
Bugtraq: 20060215 False positive signature verification in GnuPG (Google Search)
http://www.securityfocus.com/archive/1/archive/1/425289/100/0/threaded
http://marc.theaimsgroup.com/?l=gnupg-devel&m=113999098729114&w=2
http://lists.gnupg.org/pipermail/gnupg-announce/2006q1/000211.html
Debian Security Information: DSA-978 (Google Search)
http://www.us.debian.org/security/2006/dsa-978
http://fedoranews.org/updates/FEDORA-2006-116.shtml
http://www.securityfocus.com/archive/1/archive/1/433931/100/0/threaded
http://www.gentoo.org/security/en/glsa/glsa-200602-10.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2006:043
http://www.openpkg.org/security/OpenPKG-SA-2006.001-gnupg.html
http://www.redhat.com/support/errata/RHSA-2006-0266.html
SGI Security Advisory: 20060401-01-U
ftp://patches.sgi.com/support/free/security/advisories/20060401-01-U
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.476477
SuSE Security Announcement: SUSE-SA:2006:009 (Google Search)
http://www.novell.com/linux/security/advisories/2006_09_gpg.html
SuSE Security Announcement: SUSE-SR:2006:005 (Google Search)
http://www.novell.com/linux/security/advisories/2006_05_sr.html
SuSE Security Announcement: SUSE-SA:2006:013 (Google Search)
http://www.novell.com/linux/security/advisories/2006_13_gpg.html
http://www.trustix.org/errata/2006/0008
http://www.ubuntu.com/usn/usn-252-1
http://www.securityfocus.com/bid/16663
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10084
http://www.vupen.com/english/advisories/2006/0610
http://www.osvdb.org/23221
http://secunia.com/advisories/18845
http://secunia.com/advisories/18934
http://secunia.com/advisories/18933
http://secunia.com/advisories/18942
http://secunia.com/advisories/18955
http://secunia.com/advisories/18956
http://secunia.com/advisories/18968
http://secunia.com/advisories/19130
http://secunia.com/advisories/19249
http://secunia.com/advisories/19532
XForce ISS Database: gnupg-gpgv-improper-verification(24744)
http://xforce.iss.net/xforce/xfdb/24744
CopyrightCopyright (c) 2006 E-Soft Inc. http://www.securityspace.com

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