GHSA-8459-GG55-8QJJ

Vulnerability from github – Published: 2024-02-14 18:30 – Updated: 2025-11-04 21:31
VLAI?
Details

Certain DNSSEC aspects of the DNS protocol (in RFC 4035 and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the "KeyTrap" issue. The protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-50387"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-14T16:15:45Z",
    "severity": "HIGH"
  },
  "details": "Certain DNSSEC aspects of the DNS protocol (in RFC 4035 and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the \"KeyTrap\" issue. The protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.",
  "id": "GHSA-8459-gg55-8qjj",
  "modified": "2025-11-04T21:31:09Z",
  "published": "2024-02-14T18:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50387"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7"
    },
    {
      "type": "WEB",
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    },
    {
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    {
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    },
    {
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R"
    },
    {
      "type": "WEB",
      "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
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    {
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      "url": "https://news.ycombinator.com/item?id=39367411"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=39372384"
    },
    {
      "type": "WEB",
      "url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released"
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    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240307-0007"
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    {
      "type": "WEB",
      "url": "https://www.athene-center.de/aktuelles/key-trap"
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    {
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      "url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
    },
    {
      "type": "WEB",
      "url": "https://www.isc.org/blogs/2024-bind-security-release"
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    {
      "type": "WEB",
      "url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers"
    },
    {
      "type": "WEB",
      "url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-50387"
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    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
    },
    {
      "type": "WEB",
      "url": "https://datatracker.ietf.org/doc/html/rfc4035"
    },
    {
      "type": "WEB",
      "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
    },
    {
      "type": "WEB",
      "url": "https://kb.isc.org/docs/cve-2023-50387"
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    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
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      "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
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    },
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    {
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ"
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    {
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    {
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    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
    },
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.