Explain CVE-2006-0455
gpgv in GnuPG before 1.4.2.1, when using unattended signature verification, returns a 0 exit code in certain cases even when the detached signature file does not carry a signature, which could cause programs that use gpgv to assume that the signature verification has succeeded.  Note: this also occurs when running the equivalent command "gpg --verify".
Affected Products: n/a
References: [{'name': '16663', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/16663'}, {'name': '18956', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18956'}, {'name': '2006-0008', 'tags': ['vendor-advisory', 'x_refsource_TRUSTIX'], 'url': 'http://www.trustix.org/errata/2006/0008'}, {'name': '[gnupg-devel] 20060215 [Announce] False positive signature verification in GnuPG', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://marc.info/?l=gnupg-devel&m=113999098729114&w=2'}, {'name': 'OpenPKG-SA-2006.001', 'tags': ['vendor-advisory', 'x_refsource_OPENPKG'], 'url': 'http://www.openpkg.org/security/OpenPKG-SA-2006.001-gnupg.html'}, {'name': '19249', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/19249'}, {'name': 'SUSE-SR:2006:005', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://www.novell.com/linux/security/advisories/2006_05_sr.html'}, {'name': 'RHSA-2006:0266', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2006-0266.html'}, {'name': 'SUSE-SA:2006:013', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://www.novell.com/linux/security/advisories/2006_13_gpg.html'}, {'name': '20060401-01-U', 'tags': ['vendor-advisory', 'x_refsource_SGI'], 'url': 'ftp://patches.sgi.com/support/free/security/advisories/20060401-01-U'}, {'name': '20060215 False positive signature verification in GnuPG', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/425289/100/0/threaded'}, {'name': '18934', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18934'}, {'name': 'FEDORA-2006-116', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'http://fedoranews.org/updates/FEDORA-2006-116.shtml'}, {'name': 'gnupg-gpgv-improper-verification(24744)', 'tags': ['vdb-entry', 'x_refsource_XF'], 'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/24744'}, {'name': 'oval:org.mitre.oval:def:10084', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10084'}, {'name': 'SSA:2006-072-02', 'tags': ['vendor-advisory', 'x_refsource_SLACKWARE'], 'url': 'http://www.slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.476477'}, {'name': 'FLSA-2006:185355', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'http://www.securityfocus.com/archive/1/433931/100/0/threaded'}, {'name': '18955', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18955'}, {'name': '[gnupg-announce] 20060215 False positive signature verification in GnuPG', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://lists.gnupg.org/pipermail/gnupg-announce/2006q1/000211.html'}, {'name': 'SUSE-SA:2006:009', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://www.novell.com/linux/security/advisories/2006_09_gpg.html'}, {'name': '19130', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/19130'}, {'name': 'GLSA-200602-10', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'http://www.gentoo.org/security/en/glsa/glsa-200602-10.xml'}, {'name': '19532', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/19532'}, {'name': '18933', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18933'}, {'name': 'DSA-978', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.us.debian.org/security/2006/dsa-978'}, {'name': '23221', 'tags': ['vdb-entry', 'x_refsource_OSVDB'], 'url': 'http://www.osvdb.org/23221'}, {'name': 'USN-252-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/usn-252-1'}, {'name': '18968', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18968'}, {'name': '18845', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18845'}, {'name': '18942', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/18942'}, {'name': 'MDKSA-2006:043', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2006:043'}, {'name': 'ADV-2006-0610', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2006/0610'}]
CVE State: PUBLISHED