{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2009-4272",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing \"emergency\" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic."
            }
        ]
    },
    "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": "http://support.avaya.com/css/P8/documents/100073666",
                "refsource": "MISC",
                "name": "http://support.avaya.com/css/P8/documents/100073666"
            },
            {
                "url": "https://rhn.redhat.com/errata/RHSA-2010-0046.html",
                "refsource": "MISC",
                "name": "https://rhn.redhat.com/errata/RHSA-2010-0046.html"
            },
            {
                "url": "https://rhn.redhat.com/errata/RHSA-2010-0095.html",
                "refsource": "MISC",
                "name": "https://rhn.redhat.com/errata/RHSA-2010-0095.html"
            },
            {
                "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=73e42897e8e5619eacb787d2ce69be12f47cfc21",
                "refsource": "MISC",
                "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=73e42897e8e5619eacb787d2ce69be12f47cfc21"
            },
            {
                "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b6280b47a7a42970d098a3059f4ebe7e55e90d8d",
                "refsource": "MISC",
                "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b6280b47a7a42970d098a3059f4ebe7e55e90d8d"
            },
            {
                "url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31",
                "refsource": "MISC",
                "name": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2010/01/20/1",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2010/01/20/1"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2010/01/20/6",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2010/01/20/6"
            },
            {
                "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/55808",
                "refsource": "MISC",
                "name": "https://exchange.xforce.ibmcloud.com/vulnerabilities/55808"
            },
            {
                "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167",
                "refsource": "MISC",
                "name": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11167"
            },
            {
                "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026",
                "refsource": "MISC",
                "name": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7026"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=545411",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=545411"
            }
        ]
    }
}