cvelist/2021/41xxx/CVE-2021-41524.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2021-41524",
        "STATE": "PUBLIC",
        "TITLE": "null pointer dereference in h2 fuzzing"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache HTTP Server",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "2.4.49"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Apache Software Foundation"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Apache httpd team would like to thank LI ZHI XIN from NSFocus Security Team for reporting this issue."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": [
        {
            "other": "moderate"
        }
    ],
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-476 NULL Pointer Dereference"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://httpd.apache.org/security/vulnerabilities_24.html",
                "name": "https://httpd.apache.org/security/vulnerabilities_24.html"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20211005 CVE-2021-41524: Apache HTTP Server: null pointer dereference in h2 fuzzing",
                "url": "http://www.openwall.com/lists/oss-security/2021/10/05/1"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-5d2d4b6ac5",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/"
            },
            {
                "refsource": "CISCO",
                "name": "20211007 Apache HTTP Server Vulnerabilties: October 2021",
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-f94985afca",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20211029-0009/",
                "url": "https://security.netapp.com/advisory/ntap-20211029-0009/"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202208-20",
                "url": "https://security.gentoo.org/glsa/202208-20"
            }
        ]
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "timeline": [
        {
            "lang": "eng",
            "time": "2021-09-17",
            "value": "reported by Gerald Lee"
        },
        {
            "lang": "eng",
            "time": "2021-09-26",
            "value": "fixed by r1893655 in 2.4.x"
        }
    ],
    "work_around": [
        {
            "lang": "eng",
            "value": "Disable the HTTP/2 protocol."
        }
    ]
}