GHSA-MPRQ-HPVV-8WCC

Vulnerability from github – Published: 2022-05-14 03:24 – Updated: 2025-04-20 03:46
VLAI?
Details

In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.

Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2017-13704"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-10-03T01:29:00Z",
    "severity": "HIGH"
  },
  "details": "In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero\u0027s (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.",
  "id": "GHSA-mprq-hpvv-8wcc",
  "modified": "2025-04-20T03:46:12Z",
  "published": "2022-05-14T03:24:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-13704"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/vulnerabilities/3199382"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK"
    },
    {
      "type": "WEB",
      "url": "https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html"
    },
    {
      "type": "WEB",
      "url": "https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq"
    },
    {
      "type": "WEB",
      "url": "http://thekelleys.org.uk/dnsmasq/CHANGELOG"
    },
    {
      "type": "WEB",
      "url": "http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=63437ffbb58837b214b4b92cb1c54bc5f3279928"
    },
    {
      "type": "WEB",
      "url": "http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=63437ffbb58837b214b4b92cb1c54bc5f3279928"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/101085"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/101977"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039474"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.