ghsa-97c4-2w4v-c7r8
Vulnerability from github
Published
2024-07-31 09:30
Modified
2024-08-12 18:30
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details

libcurl's ASN1 parser code has the GTime2str() function, used for parsing an ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length of the time fraction, leading to a strlen() getting performed on a pointer to a heap buffer area that is not (purposely) null terminated.

This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the application when CURLINFO_CERTINFO is used.

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{
   affected: [],
   aliases: [
      "CVE-2024-7264",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-125",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-07-31T08:15:02Z",
      severity: "MODERATE",
   },
   details: "libcurl's ASN1 parser code has the `GTime2str()` function, used for parsing an\nASN.1 Generalized Time field. If given an syntactically incorrect field, the\nparser might end up using -1 for the length of the *time fraction*, leading to\na `strlen()` getting performed on a pointer to a heap buffer area that is not\n(purposely) null terminated.\n\nThis flaw most likely leads to a crash, but can also lead to heap contents\ngetting returned to the application when\n[CURLINFO_CERTINFO](https://curl.se/libcurl/c/CURLINFO_CERTINFO.html) is used.",
   id: "GHSA-97c4-2w4v-c7r8",
   modified: "2024-08-12T18:30:45Z",
   published: "2024-07-31T09:30:49Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-7264",
      },
      {
         type: "WEB",
         url: "https://hackerone.com/reports/2629968",
      },
      {
         type: "WEB",
         url: "https://curl.se/docs/CVE-2024-7264.html",
      },
      {
         type: "WEB",
         url: "https://curl.se/docs/CVE-2024-7264.json",
      },
      {
         type: "WEB",
         url: "http://www.openwall.com/lists/oss-security/2024/07/31/1",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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