{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2006-4020",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "scanf.c in PHP 5.1.4 and earlier, and 4.4.3 and earlier, allows context-dependent attackers to execute arbitrary code via a sscanf PHP function call that performs argument swapping, which increments an index past the end of an array and triggers a buffer over-read."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc",
                "refsource": "MISC",
                "name": "ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc"
            },
            {
                "url": "http://secunia.com/advisories/22487",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/22487"
            },
            {
                "url": "http://secunia.com/advisories/21847",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21847"
            },
            {
                "url": "http://www.novell.com/linux/security/advisories/2006_22_sr.html",
                "refsource": "MISC",
                "name": "http://www.novell.com/linux/security/advisories/2006_22_sr.html"
            },
            {
                "url": "http://secunia.com/advisories/21467",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21467"
            },
            {
                "url": "http://www.novell.com/linux/security/advisories/2006_20_sr.html",
                "refsource": "MISC",
                "name": "http://www.novell.com/linux/security/advisories/2006_20_sr.html"
            },
            {
                "url": "http://rhn.redhat.com/errata/RHSA-2006-0688.html",
                "refsource": "MISC",
                "name": "http://rhn.redhat.com/errata/RHSA-2006-0688.html"
            },
            {
                "url": "http://secunia.com/advisories/22538",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/22538"
            },
            {
                "url": "http://securitytracker.com/id?1016984",
                "refsource": "MISC",
                "name": "http://securitytracker.com/id?1016984"
            },
            {
                "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm",
                "refsource": "MISC",
                "name": "http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm"
            },
            {
                "url": "http://bugs.php.net/bug.php?id=38322",
                "refsource": "MISC",
                "name": "http://bugs.php.net/bug.php?id=38322"
            },
            {
                "url": "http://rhn.redhat.com/errata/RHSA-2006-0736.html",
                "refsource": "MISC",
                "name": "http://rhn.redhat.com/errata/RHSA-2006-0736.html"
            },
            {
                "url": "http://secunia.com/advisories/21403",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21403"
            },
            {
                "url": "http://secunia.com/advisories/21546",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21546"
            },
            {
                "url": "http://secunia.com/advisories/21608",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21608"
            },
            {
                "url": "http://secunia.com/advisories/21683",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21683"
            },
            {
                "url": "http://secunia.com/advisories/21768",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/21768"
            },
            {
                "url": "http://secunia.com/advisories/22004",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/22004"
            },
            {
                "url": "http://secunia.com/advisories/22039",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/22039"
            },
            {
                "url": "http://secunia.com/advisories/22069",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/22069"
            },
            {
                "url": "http://secunia.com/advisories/22440",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/22440"
            },
            {
                "url": "http://secunia.com/advisories/23247",
                "refsource": "MISC",
                "name": "http://secunia.com/advisories/23247"
            },
            {
                "url": "http://security.gentoo.org/glsa/glsa-200608-28.xml",
                "refsource": "MISC",
                "name": "http://security.gentoo.org/glsa/glsa-200608-28.xml"
            },
            {
                "url": "http://securityreason.com/securityalert/1341",
                "refsource": "MISC",
                "name": "http://securityreason.com/securityalert/1341"
            },
            {
                "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-221.htm",
                "refsource": "MISC",
                "name": "http://support.avaya.com/elmodocs2/security/ASA-2006-221.htm"
            },
            {
                "url": "http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm",
                "refsource": "MISC",
                "name": "http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm"
            },
            {
                "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:144",
                "refsource": "MISC",
                "name": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:144"
            },
            {
                "url": "http://www.novell.com/linux/security/advisories/2006_19_sr.html",
                "refsource": "MISC",
                "name": "http://www.novell.com/linux/security/advisories/2006_19_sr.html"
            },
            {
                "url": "http://www.novell.com/linux/security/advisories/2006_52_php.html",
                "refsource": "MISC",
                "name": "http://www.novell.com/linux/security/advisories/2006_52_php.html"
            },
            {
                "url": "http://www.php.net/ChangeLog-5.php#5.1.5",
                "refsource": "MISC",
                "name": "http://www.php.net/ChangeLog-5.php#5.1.5"
            },
            {
                "url": "http://www.php.net/release_5_1_5.php",
                "refsource": "MISC",
                "name": "http://www.php.net/release_5_1_5.php"
            },
            {
                "url": "http://www.plain-text.info/sscanf_bug.txt",
                "refsource": "MISC",
                "name": "http://www.plain-text.info/sscanf_bug.txt"
            },
            {
                "url": "http://www.redhat.com/support/errata/RHSA-2006-0669.html",
                "refsource": "MISC",
                "name": "http://www.redhat.com/support/errata/RHSA-2006-0669.html"
            },
            {
                "url": "http://www.redhat.com/support/errata/RHSA-2006-0682.html",
                "refsource": "MISC",
                "name": "http://www.redhat.com/support/errata/RHSA-2006-0682.html"
            },
            {
                "url": "http://www.securityfocus.com/archive/1/442438/30/0/threaded",
                "refsource": "MISC",
                "name": "http://www.securityfocus.com/archive/1/442438/30/0/threaded"
            },
            {
                "url": "http://www.securityfocus.com/bid/19415",
                "refsource": "MISC",
                "name": "http://www.securityfocus.com/bid/19415"
            },
            {
                "url": "http://www.ubuntu.com/usn/usn-342-1",
                "refsource": "MISC",
                "name": "http://www.ubuntu.com/usn/usn-342-1"
            },
            {
                "url": "http://www.vupen.com/english/advisories/2006/3193",
                "refsource": "MISC",
                "name": "http://www.vupen.com/english/advisories/2006/3193"
            },
            {
                "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11062",
                "refsource": "MISC",
                "name": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11062"
            }
        ]
    }
}