ghsa-73q8-6p6h-wvfh
Vulnerability from github
Published
2022-05-14 00:52
Modified
2025-06-09 18:31
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details

An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-20679"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-09T16:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.",
  "id": "GHSA-73q8-6p6h-wvfh",
  "modified": "2025-06-09T18:31:58Z",
  "published": "2022-05-14T00:52:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20679"
    },
    {
      "type": "WEB",
      "url": "https://bugs.busybox.net/show_bug.cgi?id=11506"
    },
    {
      "type": "WEB",
      "url": "https://busybox.net/news.html"
    },
    {
      "type": "WEB",
      "url": "https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Sep/7"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3935-1"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2019/Sep/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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