ghsa-8q8p-vxj6-fg2g
Vulnerability from github
Published
2022-05-13 01:28
Modified
2025-04-12 13:02
Severity ?
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.

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{
  "affected": [],
  "aliases": [
    "CVE-2016-3120"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-08-01T02:59:00Z",
    "severity": "MODERATE"
  },
  "details": "The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.",
  "id": "GHSA-8q8p-vxj6-fg2g",
  "modified": "2025-04-12T13:02:56Z",
  "published": "2022-05-13T01:28:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3120"
    },
    {
      "type": "WEB",
      "url": "https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35"
    },
    {
      "type": "WEB",
      "url": "http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-09/msg00035.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-2591.html"
    },
    {
      "type": "WEB",
      "url": "http://web.mit.edu/kerberos/krb5-1.13"
    },
    {
      "type": "WEB",
      "url": "http://web.mit.edu/kerberos/krb5-1.14"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/92132"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036442"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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