cvelist/2021/45xxx/CVE-2021-45046.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2021-45046",
        "STATE": "PUBLIC",
        "TITLE": "Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache Log4j",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "Apache Log4j2",
                                            "version_value": "2.16.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Apache Software Foundation"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": [
        {
            "other": "moderate (CVSS: 3.7 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)"
        }
    ],
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-502 Deserialization of Untrusted Data"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "CONFIRM",
                "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032",
                "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html",
                "url": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html"
            },
            {
                "refsource": "MISC",
                "url": "https://www.cve.org/CVERecord?id=CVE-2021-44228",
                "name": "https://www.cve.org/CVERecord?id=CVE-2021-44228"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20211214 CVE-2021-45046: Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack",
                "url": "http://www.openwall.com/lists/oss-security/2021/12/14/4"
            },
            {
                "refsource": "CONFIRM",
                "url": "https://logging.apache.org/log4j/2.x/security.html",
                "name": "https://logging.apache.org/log4j/2.x/security.html"
            },
            {
                "refsource": "CERT-VN",
                "name": "VU#930724",
                "url": "https://www.kb.cert.org/vuls/id/930724"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html",
                "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html"
            },
            {
                "refsource": "CISCO",
                "name": "20211210 Vulnerabilities in Apache Log4j Library Affecting Cisco Products: December 2021",
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20211215 Re: CVE-2021-45046: Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack",
                "url": "http://www.openwall.com/lists/oss-security/2021/12/15/3"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5022",
                "url": "https://www.debian.org/security/2021/dsa-5022"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20211218 Re: CVE-2021-45046: Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack",
                "url": "http://www.openwall.com/lists/oss-security/2021/12/18/1"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf",
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-5c9d12a93e",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-abbe24e41c",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujul2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujul2022.html"
            }
        ]
    },
    "source": {
        "discovery": "UNKNOWN"
    }
}