ghsa-cqp5-89fm-vp89
Vulnerability from github
Published
2022-05-24 19:09
Modified
2022-05-24 19:09
Details

libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the '\0' terminator one byte too late.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-36159"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-03T14:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the \u0027\\0\u0027 terminator one byte too late.",
  "id": "GHSA-cqp5-89fm-vp89",
  "modified": "2022-05-24T19:09:52Z",
  "published": "2022-05-24T19:09:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36159"
    },
    {
      "type": "WEB",
      "url": "https://github.com/freebsd/freebsd-src/commits/main/lib/libfetch"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.alpinelinux.org/alpine/apk-tools/-/issues/10749"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cdev.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cusers.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cdev.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cusers.kafka.apache.org%3E"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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