RHSA-2002:131
Vulnerability from csaf_redhat
Published
2002-07-12 22:37
Modified
2024-11-21 22:24
Summary
Red Hat Security Advisory: openssh security update

Notes

Topic
Updated openssh packages are now available for Red Hat Linux Advanced Server. These updates fix an input validation error in OpenSSH.
Details
OpenSSH provides an implementation of the SSH (secure shell) protocol used for logging into and executing commands on remote machines. Versions of the OpenSSH server between 2.3.1 and 3.3 contain an input validation error that can result in an integer overflow and privilege escalation. At this time, Red Hat does not believe that the default installation of OpenSSH on Red Hat Linux is vulnerable to this issue; however a user would be vulnerable if the configuration option "PAMAuthenticationViaKbdInt" is enabled in the sshd configuration file (it is not enabled by default). We have applied the security fix provided by the OpenSSH team to these errata packages which are based on OpenSSH 3.1p1. This should minimize the impact of upgrading to our errata packages. All users of OpenSSH should update to these errata packages which 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": "Moderate"
    },
    "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 openssh packages are now available for Red Hat Linux Advanced\nServer.  These updates fix an input validation error in OpenSSH.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "OpenSSH provides an implementation of the SSH (secure shell) protocol used\nfor logging into and executing commands on remote machines.  \n\nVersions of the OpenSSH server between 2.3.1 and 3.3 contain an input\nvalidation error that can result in an integer overflow and privilege\nescalation.\n\nAt this time, Red Hat does not believe that the default installation of\nOpenSSH on Red Hat Linux is vulnerable to this issue; however a user would\nbe vulnerable if the configuration option \"PAMAuthenticationViaKbdInt\" is\nenabled in the sshd configuration file (it is not enabled by default).\n\nWe have applied the security fix provided by the OpenSSH team to these\nerrata packages which are based on OpenSSH 3.1p1.  This should minimize the\nimpact of upgrading to our errata packages.\n\nAll users of OpenSSH should update to these errata packages which are not\nvulnerable 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-2002:131",
        "url": "https://access.redhat.com/errata/RHSA-2002:131"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "http://marc.theaimsgroup.com/?l=openssh-unix-dev\u0026m=102510268109227",
        "url": "http://marc.theaimsgroup.com/?l=openssh-unix-dev\u0026m=102510268109227"
      },
      {
        "category": "external",
        "summary": "http://marc.theaimsgroup.com/?l=openssh-unix-dev\u0026m=102511867031136",
        "url": "http://marc.theaimsgroup.com/?l=openssh-unix-dev\u0026m=102511867031136"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_131.json"
      }
    ],
    "title": "Red Hat Security Advisory: openssh security update",
    "tracking": {
      "current_release_date": "2024-11-21T22:24:28+00:00",
      "generator": {
        "date": "2024-11-21T22:24:28+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2002:131",
      "initial_release_date": "2002-07-12T22:37:00+00:00",
      "revision_history": [
        {
          "date": "2002-07-12T22:37:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2002-06-27T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:24:28+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-2002-0640",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616784"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Buffer overflow in sshd in OpenSSH 2.3.1 through 3.3 may allow remote attackers to execute arbitrary code via a large number of responses during challenge response authentication when OpenBSD is using PAM modules with interactive keyboard authentication (PAMAuthenticationViaKbdInt).",
          "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-2002-0640"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616784",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616784"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-0640",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-0640"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-0640",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-0640"
        }
      ],
      "release_date": "2002-06-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-07-12T22:37:00+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-2002:131"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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