{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2011-0491",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to \"underflow errors.\""
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "[or-announce] 20110117 Tor 0.2.1.29 is released (security patches)",
                "refsource": "MLIST",
                "url": "http://archives.seul.org/or/announce/Jan-2011/msg00000.html"
            },
            {
                "name": "https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog",
                "refsource": "CONFIRM",
                "url": "https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog"
            },
            {
                "name": "https://trac.torproject.org/projects/tor/ticket/2324",
                "refsource": "CONFIRM",
                "url": "https://trac.torproject.org/projects/tor/ticket/2324"
            },
            {
                "name": "http://blog.torproject.org/blog/tor-02129-released-security-patches",
                "refsource": "CONFIRM",
                "url": "http://blog.torproject.org/blog/tor-02129-released-security-patches"
            },
            {
                "name": "tor-torrealloc-dos(64888)",
                "refsource": "XF",
                "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/64888"
            },
            {
                "name": "45953",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/45953"
            }
        ]
    }
}