RHSA-2001_100

Vulnerability from csaf_redhat - Published: 2001-08-09 21:38 - Updated: 2024-11-21 22:09
Summary
Red Hat Security Advisory: : Updated Kerberos 5 packages now available

Notes

Topic
Updated Kerberos 5 packages are now available for Red Hat Linux 6.2, 7, and 7.1. These updates close vulnerabilities due to potential buffer overflows in the Kerberos-aware telnet server included in the krb5-workstation package.
Details
By exploiting buffer overflows in the telnet server included in the krb5-workstation package, a remote attacker can obtain superuser privileges on a vulnerable host.
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": "Updated Kerberos 5 packages are now available for Red Hat Linux 6.2, 7,\nand 7.1. These updates close vulnerabilities due to potential buffer\noverflows in the Kerberos-aware telnet server included in the\nkrb5-workstation package.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "By exploiting buffer overflows in the telnet server included in the\nkrb5-workstation package, a remote attacker can obtain superuser privileges\non a vulnerable host.",
        "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-2001:100",
        "url": "https://access.redhat.com/errata/RHSA-2001:100"
      },
      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/",
        "url": "http://web.mit.edu/kerberos/www/advisories/"
      },
      {
        "category": "external",
        "summary": "http://web.mit.edu/kerberos/www/advisories/telnetd_122_patch.txt",
        "url": "http://web.mit.edu/kerberos/www/advisories/telnetd_122_patch.txt"
      },
      {
        "category": "external",
        "summary": "42551",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=42551"
      },
      {
        "category": "external",
        "summary": "45965",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=45965"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2001/rhsa-2001_100.json"
      }
    ],
    "title": "Red Hat Security Advisory: : Updated Kerberos 5 packages now available",
    "tracking": {
      "current_release_date": "2024-11-21T22:09:04+00:00",
      "generator": {
        "date": "2024-11-21T22:09:04+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2001:100",
      "initial_release_date": "2001-08-09T21:38:00+00:00",
      "revision_history": [
        {
          "date": "2001-08-09T21:38:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2001-08-02T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:09:04+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_family",
            "name": "Red Hat Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2001-0554",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616596"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function.",
          "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"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2001-0554"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616596",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616596"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2001-0554",
          "url": "https://www.cve.org/CVERecord?id=CVE-2001-0554"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2001-0554",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2001-0554"
        }
      ],
      "release_date": "2001-07-18T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2001-08-09T21:38:00+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"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2001:100"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.