Explain CVE-2011-0421
The _zip_name_locate function in zip_name_locate.c in the Zip extension in PHP before 5.3.6 does not properly handle a ZIPARCHIVE::FL_UNCHANGED argument, which might allow context-dependent attackers to cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation.
Affected Products: n/a
References: [{'name': 'MDVSA-2011:099', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2011:099'}, {'name': 'HPSBOV02763', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://marc.info/?l=bugtraq&m=133469208622507&w=2'}, {'name': 'SUSE-SR:2011:009', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html'}, {'name': 'FEDORA-2011-3636', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057709.html'}, {'name': 'ADV-2011-0764', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2011/0764'}, {'name': 'FEDORA-2011-3614', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056642.html'}, {'name': '8146', 'tags': ['third-party-advisory', 'x_refsource_SREASON'], 'url': 'http://securityreason.com/securityalert/8146'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=688735'}, {'name': '43621', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/43621'}, {'name': 'MDVSA-2011:053', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2011:053'}, {'name': 'DSA-2266', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2011/dsa-2266'}, {'name': 'ADV-2011-0890', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2011/0890'}, {'name': 'libzip-zipnamelocate-dos(66173)', 'tags': ['vdb-entry', 'x_refsource_XF'], 'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/66173'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.php.net/releases/5_3_6.php'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://svn.php.net/viewvc/?view=revision&revision=307867'}, {'name': '20110318 libzip 0.9.3 _zip_name_locate NULL Pointer Dereference (incl PHP 5.3.5)', 'tags': ['third-party-advisory', 'x_refsource_SREASONRES'], 'url': 'http://securityreason.com/achievement_securityalert/96'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.php.net/ChangeLog-5.php'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.php.net/archive/2011.php'}, {'name': 'SSRT100826', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://marc.info/?l=bugtraq&m=133469208622507&w=2'}, {'name': 'APPLE-SA-2011-10-12-3', 'tags': ['vendor-advisory', 'x_refsource_APPLE'], 'url': 'http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html'}, {'name': '20110318 libzip 0.9.3 _zip_name_locate NULL Pointer Dereference (incl PHP 5.3.5)', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/517065/100/0/threaded'}, {'name': '17004', 'tags': ['exploit', 'x_refsource_EXPLOIT-DB'], 'url': 'http://www.exploit-db.com/exploits/17004'}, {'name': 'FEDORA-2011-3666', 'tags': ['vendor-advisory', 'x_refsource_FEDORA'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057710.html'}, {'name': 'MDVSA-2011:052', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDVSA-2011:052'}, {'name': 'ADV-2011-0744', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2011/0744'}, {'name': '46354', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/46354'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://support.apple.com/kb/HT5002'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://bugs.php.net/bug.php?id=53885'}]
CVE State: PUBLISHED