rhsa-2002:250
Vulnerability from csaf_redhat
Published
2002-11-07 17:35
Modified
2024-11-21 22:31
Summary
Red Hat Security Advisory: krb5 security update

Notes

Topic
A remotely exploitable stack buffer overflow has been found in the Kerberos v4 compatibility administration daemon distributed with the Red Hat Linux Advanced Server krb5 packages. [Updated 09 Jan 2003] Added fixed packages for the Itanium (IA64) architecture.
Details
Kerberos is a network authentication system. A stack buffer overflow has been found in the implementation of the Kerberos v4 compatibility administration daemon (kadmind4), which is part of the MIT krb5 distribution. This vulnerability is present in version 1.2.6 and earlier of the MIT krb5 distribution and can be exploited to gain unauthorized root access to a KDC host. The attacker does not need to authenticate to the daemon to successfully perform this attack. The Kerberos packages in Red Hat Linux Advanced Server include kadmind4 but it is not enabled or used by default. All users of Kerberos are advised to upgrade to these errata packages which contain a backported patch and are not vulnerable to this issue.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Critical"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A remotely exploitable stack buffer overflow has been found in the Kerberos\nv4 compatibility administration daemon distributed with the Red Hat Linux\nAdvanced Server krb5 packages.\n\n[Updated 09 Jan 2003]\nAdded fixed packages for the Itanium (IA64) architecture.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Kerberos is a network authentication system.\n\nA stack buffer overflow has been found in the implementation of the\nKerberos v4 compatibility administration daemon (kadmind4), which is part\nof the MIT krb5 distribution. This vulnerability is present in version\n1.2.6 and earlier of the MIT krb5 distribution and can be exploited to gain\nunauthorized root access to a KDC host. The attacker does not need to\nauthenticate to the daemon to successfully perform this attack.\n\nThe Kerberos packages in Red Hat Linux Advanced Server include kadmind4 \nbut it is not enabled or used by default.\n\nAll users of Kerberos are advised to upgrade to these errata packages which\ncontain a backported patch and are not vulnerable to this issue.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2002:250",
        "url": "https://access.redhat.com/errata/RHSA-2002:250"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#critical",
        "url": "https://access.redhat.com/security/updates/classification/#critical"
      },
      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2002-002-kadm4.txt",
        "url": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2002-002-kadm4.txt"
      },
      {
        "category": "external",
        "summary": "77316",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=77316"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_250.json"
      }
    ],
    "title": "Red Hat Security Advisory: krb5 security update",
    "tracking": {
      "current_release_date": "2024-11-21T22:31:16+00:00",
      "generator": {
        "date": "2024-11-21T22:31:16+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2002:250",
      "initial_release_date": "2002-11-07T17:35:00+00:00",
      "revision_history": [
        {
          "date": "2002-11-07T17:35:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2003-02-07T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:31:16+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
                "product": {
                  "name": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
                  "product_id": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:2.1::as"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Advanced Server"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2002-1235",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616862"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The kadm_ser_in function in (1) the Kerberos v4compatibility administration daemon (kadmind4) in the MIT Kerberos 5 (krb5) krb5-1.2.6 and earlier, (2) kadmind in KTH Kerberos 4 (eBones) before 1.2.1, and (3) kadmind in KTH Kerberos 5 (Heimdal) before 0.5.1 when compiled with Kerberos 4 support, does not properly verify the length field of a request, which allows remote attackers to execute arbitrary code via a buffer overflow attack.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 "
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2002-1235"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616862",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616862"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-1235",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-1235"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-1235",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-1235"
        }
      ],
      "release_date": "2002-10-23T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-11-07T17:35:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nPlease note that this update is available via Red Hat Network.  To use Red\nHat Network, launch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.",
          "product_ids": [
            "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 "
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2002:250"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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