gsd-2021-41524
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2021-41524


To clipboard 

{
   GSD: {
      alias: "CVE-2021-41524",
      description: "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.",
      id: "GSD-2021-41524",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-41524.html",
         "https://advisories.mageia.org/CVE-2021-41524.html",
         "https://security.archlinux.org/CVE-2021-41524",
         "https://alas.aws.amazon.com/cve/html/CVE-2021-41524.html",
         "https://access.redhat.com/errata/RHSA-2022:7143",
         "https://access.redhat.com/errata/RHSA-2022:7144",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-41524",
         ],
         details: "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.",
         id: "GSD-2021-41524",
         modified: "2023-12-13T01:23:27.635059Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
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            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.",
            },
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               },
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         problemtype: {
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                        lang: "eng",
                        value: "CWE-476 NULL Pointer Dereference",
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         },
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               },
               {
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                  refsource: "FEDORA",
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               },
               {
                  name: "20211007 Apache HTTP Server Vulnerabilties: October 2021",
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         },
         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.",
            },
         ],
      },
      "nvd.nist.gov": {
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                  children: [],
                  cpe_match: [
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         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 5,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 7.5,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2022-10-28T13:51Z",
         publishedDate: "2021-10-05T09:15Z",
      },
   },
}


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