rhsa-2002_173
Vulnerability from csaf_redhat
Published
2002-09-05 07:34
Modified
2024-11-05 16:12
Summary
Red Hat Security Advisory: krb5 security update

Notes

Topic
Updated Kerberos 5 packages are now available for Red Hat LInux Advanced Server. These updates fix a buffer overflow in the XDR decoder.
Details
Sun RPC is a remote procedure call framework which allows clients to invoke procedures in a server process over a network. XDR is a mechanism for encoding data structures for use with RPC. The Kerberos 5 network authentication system contains an RPC library which includes an XDR decoder derived from Sun's RPC implementation. The Sun implementation was recently demonstrated to be vulnerable to a heap overflow. It is believed that the attacker needs to be able to authenticate to the kadmin daemon for this attack to be successful. No exploits are known to currently exist. All users should upgrade to these errata packages which contain an updated version of Kerberos 5 which is 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": "Important"
    },
    "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": "Updated Kerberos 5 packages are now available for Red Hat LInux Advanced\nServer.  These updates fix a buffer overflow in the XDR decoder.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Sun RPC is a remote procedure call framework which allows clients to invoke\nprocedures in a server process over a network.  XDR is a mechanism for\nencoding data structures for use with RPC.  \n\nThe Kerberos 5 network authentication system contains an RPC library which\nincludes an XDR decoder derived from Sun\u0027s RPC implementation. The Sun\nimplementation was recently demonstrated to be vulnerable to a heap\noverflow.  It is believed that the attacker needs to be able to\nauthenticate to the kadmin daemon for this attack to be successful.  No\nexploits are known to currently exist.\n\nAll users should upgrade to these errata packages which contain an updated\nversion of Kerberos 5 which is 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-2002:173",
        "url": "https://access.redhat.com/errata/RHSA-2002:173"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2002-001-xdr.txt",
        "url": "http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2002-001-xdr.txt"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_173.json"
      }
    ],
    "title": "Red Hat Security Advisory: krb5 security update",
    "tracking": {
      "current_release_date": "2024-11-05T16:12:31+00:00",
      "generator": {
        "date": "2024-11-05T16:12:31+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.1.1"
        }
      },
      "id": "RHSA-2002:173",
      "initial_release_date": "2002-09-05T07:34:00+00:00",
      "revision_history": [
        {
          "date": "2002-09-05T07:34:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2002-08-02T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-05T16:12:31+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-2002-0391",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616771"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Integer overflow in xdr_array function in RPC servers for operating systems that use libc, glibc, or other code based on SunRPC including dietlibc, allows remote attackers to execute arbitrary code by passing a large number of arguments to xdr_array through RPC services such as rpc.cmsd and dmispd.",
          "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-2002-0391"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616771",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616771"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-0391",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-0391"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-0391",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-0391"
        }
      ],
      "release_date": "2002-07-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-09-05T07:34:00+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 Enterprise Linux AS (Advanced Server) version 2.1 "
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2002:173"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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