Explain CVE-2007-1711
Double free vulnerability in the unserializer in PHP 4.4.5 and 4.4.6 allows context-dependent attackers to execute arbitrary code by overwriting variables pointing to (1) the GLOBALS array or (2) the session data in _SESSION.  NOTE: this issue was introduced when attempting to patch CVE-2007-1701 (MOPB-31-2007).
Affected Products: n/a
References: [{'name': 'ADV-2007-2732', 'tags': ['vdb-entry', 'x_refsource_VUPEN'], 'url': 'http://www.vupen.com/english/advisories/2007/2732'}, {'name': '23121', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/23121'}, {'name': 'DSA-1283', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2007/dsa-1283'}, {'name': 'RHSA-2007:0154', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2007-0154.html'}, {'name': '20070418 rPSA-2007-0073-1 php php-mysql php-pgsql', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/466166/100/0/threaded'}, {'name': 'APPLE-SA-2007-07-31', 'tags': ['vendor-advisory', 'x_refsource_APPLE'], 'url': 'http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html'}, {'name': 'GLSA-200705-19', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'http://security.gentoo.org/glsa/glsa-200705-19.xml'}, {'name': '24941', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/24941'}, {'name': '25062', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25062'}, {'name': 'oval:org.mitre.oval:def:10406', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10406'}, {'name': 'MDKSA-2007:087', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:087'}, {'name': '24945', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/24945'}, {'name': 'DSA-1282', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2007/dsa-1282'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://issues.rpath.com/browse/RPL-1268'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://docs.info.apple.com/article.html?artnum=306172'}, {'name': 'php-deserializer-code-execution(33575)', 'tags': ['vdb-entry', 'x_refsource_XF'], 'url': 'https://exchange.xforce.ibmcloud.com/vulnerabilities/33575'}, {'name': '24924', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/24924'}, {'name': 'RHSA-2007:0155', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2007-0155.html'}, {'name': '24910', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/24910'}, {'name': '25159', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/25159'}, {'name': '25445', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25445'}, {'tags': ['x_refsource_MISC'], 'url': 'http://www.php-security.org/MOPB/MOPB-32-2007.html'}, {'name': 'RHSA-2007:0163', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2007-0163.html'}, {'name': '25025', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/25025'}, {'name': 'MDKSA-2007:088', 'tags': ['vendor-advisory', 'x_refsource_MANDRIVA'], 'url': 'http://www.mandriva.com/security/advisories?name=MDKSA-2007:088'}, {'name': '26235', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/26235'}]
CVE State: PUBLISHED