ghsa-c8wj-435x-f2cc
Vulnerability from github
Published
2023-05-26 21:30
Modified
2024-04-04 04:21
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using alarm() and siglongjmp(). When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.

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{
   affected: [],
   aliases: [
      "CVE-2023-28320",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-362",
         "CWE-400",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2023-05-26T21:15:15Z",
      severity: "MODERATE",
   },
   details: "A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.",
   id: "GHSA-c8wj-435x-f2cc",
   modified: "2024-04-04T04:21:32Z",
   published: "2023-05-26T21:30:23Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2023-28320",
      },
      {
         type: "WEB",
         url: "https://hackerone.com/reports/1929597",
      },
      {
         type: "WEB",
         url: "https://security.gentoo.org/glsa/202310-12",
      },
      {
         type: "WEB",
         url: "https://security.netapp.com/advisory/ntap-20230609-0009",
      },
      {
         type: "WEB",
         url: "https://support.apple.com/kb/HT213843",
      },
      {
         type: "WEB",
         url: "https://support.apple.com/kb/HT213844",
      },
      {
         type: "WEB",
         url: "https://support.apple.com/kb/HT213845",
      },
      {
         type: "WEB",
         url: "http://seclists.org/fulldisclosure/2023/Jul/47",
      },
      {
         type: "WEB",
         url: "http://seclists.org/fulldisclosure/2023/Jul/48",
      },
      {
         type: "WEB",
         url: "http://seclists.org/fulldisclosure/2023/Jul/52",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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