ghsa-v687-g54p-gvwj
Vulnerability from github
Published
2022-05-24 17:12
Modified
2022-05-24 17:12
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].

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{
   affected: [],
   aliases: [
      "CVE-2020-6080",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-400",
         "CWE-401",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2020-03-24T21:15:00Z",
      severity: "MODERATE",
   },
   details: "An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].",
   id: "GHSA-v687-g54p-gvwj",
   modified: "2022-05-24T17:12:35Z",
   published: "2022-05-24T17:12:35Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2020-6080",
      },
      {
         type: "WEB",
         url: "https://security.gentoo.org/glsa/202005-10",
      },
      {
         type: "WEB",
         url: "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002",
      },
      {
         type: "WEB",
         url: "https://www.debian.org/security/2020/dsa-4671",
      },
   ],
   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",
      },
   ],
}


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