ghsa-rhcw-wjcm-9h6g
Vulnerability from github
Published
2022-02-09 00:54
Modified
2021-03-31 23:48
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Denial of service in Undertow
Details

A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

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{
   affected: [
      {
         package: {
            ecosystem: "Maven",
            name: "io.undertow:undertow-core",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "2.1.0",
                  },
                  {
                     fixed: "2.1.5",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
      {
         package: {
            ecosystem: "Maven",
            name: "io.undertow:undertow-core",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "2.0.33",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2020-27782",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-400",
      ],
      github_reviewed: true,
      github_reviewed_at: "2021-03-31T23:48:27Z",
      nvd_published_at: "2021-02-23T19:15:00Z",
      severity: "HIGH",
   },
   details: "A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.",
   id: "GHSA-rhcw-wjcm-9h6g",
   modified: "2021-03-31T23:48:27Z",
   published: "2022-02-09T00:54:12Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2020-27782",
      },
      {
         type: "WEB",
         url: "https://github.com/undertow-io/undertow/pull/997/commits/98a9ab7f2d7fe7a7254eaf17d47816c452169c90",
      },
      {
         type: "WEB",
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=1901304",
      },
      {
         type: "WEB",
         url: "https://issues.redhat.com/browse/UNDERTOW-1813",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
   summary: "Denial of service in Undertow",
}


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