rhsa-2002:242
Vulnerability from csaf_redhat
Published
2002-11-07 16:26
Modified
2024-11-21 22:31
Summary
Red Hat Security Advisory: : Updated kerberos packages available

Notes

Topic
A remotely exploitable stack buffer overflow has been found in the Kerberos v4 compatibility administration daemon distributed with the Red Hat Linux krb5 packages.
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 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. kadmind4 is included in the Kerberos packages in Red Hat Linux 6.2, 7, 7.1, 7.2, 7.3, and 8.0, but by default is not enabled or used. 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\nkrb5 packages.",
        "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 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\nkadmind4 is included in the Kerberos packages in Red Hat Linux 6.2, 7, 7.1,\n7.2, 7.3, and 8.0, but by default is not enabled or used.\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-2002:242",
        "url": "https://access.redhat.com/errata/RHSA-2002:242"
      },
      {
        "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": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_242.json"
      }
    ],
    "title": "Red Hat Security Advisory: : Updated kerberos packages available",
    "tracking": {
      "current_release_date": "2024-11-21T22:31:13+00:00",
      "generator": {
        "date": "2024-11-21T22:31:13+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2002:242",
      "initial_release_date": "2002-11-07T16:26:00+00:00",
      "revision_history": [
        {
          "date": "2002-11-07T16:26:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2003-02-07T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:31:13+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Linux 6.2",
                "product": {
                  "name": "Red Hat Linux 6.2",
                  "product_id": "Red Hat Linux 6.2",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:6.2"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.0",
                "product": {
                  "name": "Red Hat Linux 7.0",
                  "product_id": "Red Hat Linux 7.0",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.0"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.1",
                "product": {
                  "name": "Red Hat Linux 7.1",
                  "product_id": "Red Hat Linux 7.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.1"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.2",
                "product": {
                  "name": "Red Hat Linux 7.2",
                  "product_id": "Red Hat Linux 7.2",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.2"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 7.3",
                "product": {
                  "name": "Red Hat Linux 7.3",
                  "product_id": "Red Hat Linux 7.3",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:7.3"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Linux 8.0",
                "product": {
                  "name": "Red Hat Linux 8.0",
                  "product_id": "Red Hat Linux 8.0",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:linux:8.0"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Linux"
          }
        ],
        "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 Linux 6.2",
          "Red Hat Linux 7.0",
          "Red Hat Linux 7.1",
          "Red Hat Linux 7.2",
          "Red Hat Linux 7.3",
          "Red Hat Linux 8.0"
        ]
      },
      "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": "2002-11-07T16:26:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\n\nPlease note that this update is also available via Red Hat Network.  Many\npeople find this an easier way to apply updates.  To use Red Hat Network,\nlaunch 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 Linux 6.2",
            "Red Hat Linux 7.0",
            "Red Hat Linux 7.1",
            "Red Hat Linux 7.2",
            "Red Hat Linux 7.3",
            "Red Hat Linux 8.0"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2002:242"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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