rhsa-2003_091
Vulnerability from csaf_redhat
Published
2003-04-02 09:57
Modified
2024-11-21 22:38
Summary
Red Hat Security Advisory: : Updated kerberos packages fix various vulnerabilities

Notes

Topic
Updated Kerberos packages for Red Hat Linux 9 fix a number of vulnerabilities found in MIT Kerberos.
Details
Kerberos is a network authentication system. The MIT Kerberos team released an advisory describing a number of vulnerabilities that affect the kerberos packages shipped as part of Red Hat Linux 9. These issues include: Vulnerabilities have been found in the triple-DES key support found in the implementation of the Kerberos IV authentication protocol included in MIT Kerberos. The Common Vulnerabilities and Exposures project has assigned the name CAN-2003-0139 to this issue. Vulnerabilities have been found in the Kerberos IV authentication protocol which allow an attacker with knowledge of a cross-realm key, which is shared with another realm, to impersonate any principal in that realm to any service in that realm. This vulnerability can only be closed by disabling cross-realm authentication in Kerberos IV (CAN-2003-0138). Vulnerabilities have been found in the RPC library used by the kadmin service in Kerberos 5. A faulty length check in the RPC library exposes kadmind to an integer overflow which can be used to crash kadmind (CAN-2003-0028). The Key Distribution Center (KDC) allows remote, authenticated attackers to cause a denial of service (crash) on KDCs within the same realm via a certain protocol request that causes the KDC to corrupt its heap (CAN-2003-0082). All users of Kerberos are advised to upgrade to these errata packages, which disable cross-realm authentication by default for Kerberos IV and which contain patches that correct these issues.
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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      "text": "Critical"
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    "category": "csaf_security_advisory",
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    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Updated Kerberos packages for Red Hat Linux 9 fix a number of\nvulnerabilities found in MIT Kerberos.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Kerberos is a network authentication system. The MIT Kerberos team\nreleased an advisory describing a number of vulnerabilities that affect the\nkerberos packages shipped as part of Red Hat Linux 9. These issues include:\n\nVulnerabilities have been found in the triple-DES key support found in the\nimplementation of the Kerberos IV authentication protocol included in MIT\nKerberos. The Common Vulnerabilities and Exposures project has assigned\nthe name CAN-2003-0139 to this issue.\n\nVulnerabilities have been found in the Kerberos IV authentication protocol\nwhich allow an attacker with knowledge of a cross-realm key, which is\nshared with another realm, to impersonate any principal in that realm to\nany service in that realm. This vulnerability can only be closed by\ndisabling cross-realm authentication in Kerberos IV (CAN-2003-0138).\n\nVulnerabilities have been found in the RPC library used by the kadmin\nservice in Kerberos 5. A faulty length check in the RPC library exposes\nkadmind to an integer overflow which can be used to crash kadmind\n(CAN-2003-0028).\n\nThe Key Distribution Center (KDC) allows remote, authenticated attackers\nto cause a denial of service (crash) on KDCs within the same realm via a\ncertain protocol request that causes the KDC to corrupt its heap\n(CAN-2003-0082).  \n\nAll users of Kerberos are advised to upgrade to these errata packages,\nwhich disable cross-realm authentication by default for Kerberos IV and\nwhich contain patches that correct these issues.",
        "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"
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      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-005-buf.txt",
        "url": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-005-buf.txt"
      },
      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt",
        "url": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt"
      },
      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-003-xdr.txt",
        "url": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-003-xdr.txt"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_091.json"
      }
    ],
    "title": "Red Hat Security Advisory: : Updated kerberos packages fix various vulnerabilities",
    "tracking": {
      "current_release_date": "2024-11-21T22:38:47+00:00",
      "generator": {
        "date": "2024-11-21T22:38:47+00:00",
        "engine": {
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          "version": "4.2.1"
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      "id": "RHSA-2003:091",
      "initial_release_date": "2003-04-02T09:57:00+00:00",
      "revision_history": [
        {
          "date": "2003-04-02T09:57:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
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          "date": "2003-04-02T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:38:47+00:00",
          "number": "3",
          "summary": "Last generated version"
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      ],
      "status": "final",
      "version": "3"
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  "product_tree": {
    "branches": [
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          {
            "branches": [
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  "vulnerabilities": [
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      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616941"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Integer overflow in the xdrmem_getbytes() function, and possibly other functions, of XDR (external data representation) libraries derived from SunRPC, including libnsl, libc, glibc, and dietlibc, allows remote attackers to execute arbitrary code via certain integer values in length fields, a different vulnerability than CVE-2002-0391.",
          "title": "Vulnerability description"
        },
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        }
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          "url": "https://access.redhat.com/security/cve/CVE-2003-0028"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616941",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616941"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0028",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0028"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0028",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0028"
        }
      ],
      "release_date": "2003-03-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-04-02T09:57:00+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 9"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:091"
        }
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          "details": "Critical"
        }
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      "title": "security flaw"
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    {
      "cve": "CVE-2003-0082",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616960"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The Key Distribution Center (KDC) in Kerberos 5 (krb5) 1.2.7 and earlier allows remote, authenticated attackers to cause a denial of service (crash) on KDCs within the same realm using a certain protocol request that causes the KDC to corrupt its heap (aka \"buffer underrun\").",
          "title": "Vulnerability description"
        },
        {
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          "text": "security flaw",
          "title": "Vulnerability summary"
        }
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        ]
      },
      "references": [
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0082"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616960",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616960"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0082",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0082"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0082",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0082"
        }
      ],
      "release_date": "2003-03-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-04-02T09:57:00+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": [
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:091"
        }
      ],
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          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "security flaw"
    },
    {
      "cve": "CVE-2003-0138",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616981"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Version 4 of the Kerberos protocol (krb4), as used in Heimdal and other packages, allows an attacker to impersonate any principal in a realm via a chosen-plaintext attack.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
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          "url": "https://access.redhat.com/security/cve/CVE-2003-0138"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616981",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616981"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0138",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0138"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0138",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0138"
        }
      ],
      "release_date": "2003-03-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-04-02T09:57:00+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 9"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:091"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "security flaw"
    },
    {
      "cve": "CVE-2003-0139",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616982"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Certain weaknesses in the implementation of version 4 of the Kerberos protocol (krb4) in the krb5 distribution, when triple-DES keys are used to key krb4 services, allow an attacker to create krb4 tickets for unauthorized principals using a cut-and-paste attack and \"ticket splicing.\"",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Linux 9"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0139"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616982",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616982"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0139",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0139"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0139",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0139"
        }
      ],
      "release_date": "2003-03-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-04-02T09:57:00+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 9"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:091"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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