ubuntu-cve-2012-1016
Vulnerability from osv_ubuntu
Published
2013-03-04 00:00
Modified
2025-07-16 04:50
Summary
Details

The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.

Severity
N/A (UNKNOWN)

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "krb5-admin-server",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-doc",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-gss-samples",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-kdc",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-kdc-ldap",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-locales",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-multidev",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-pkinit",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "krb5-user",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libgssapi-krb5-2",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libgssrpc4",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libk5crypto3",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkadm5clnt-mit8",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkadm5srv-mit8",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkdb5-7",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkrb5-3",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkrb5-dbg",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkrb5-dev",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          },
          {
            "binary_name": "libkrb5support0",
            "binary_version": "1.11.3+dfsg-3ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "krb5",
        "purl": "pkg:deb/ubuntu/krb5@1.11.3+dfsg-3ubuntu2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.11.3+dfsg-3ubuntu2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.1+dfsg-6.1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.",
  "id": "UBUNTU-CVE-2012-1016",
  "modified": "2025-07-16T04:50:04Z",
  "published": "2013-03-04T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2012-1016"
    },
    {
      "type": "REPORT",
      "url": "http://web.mit.edu/kerberos/www/krb5-1.10/"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2310-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2012-1016"
    }
  ],
  "related": [
    "USN-2310-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2012-1016"
  ],
  "withdrawn": "2025-07-18T16:42:45Z"
}



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