rhsa-2003:030
Vulnerability from csaf_redhat
Published
2003-02-21 08:41
Modified
2025-11-21 17:25
Summary
Red Hat Security Advisory: lynx security update

Notes

Topic
Updated Lynx packages fix an error in the way Lynx parses its command line arguments which can lead to faked headers being sent to a Web server.
Details
Lynx is a character-cell Web browser, suitable for running on terminals such as the VT100. Lynx constructs its HTTP queries from the command line (or WWW_HOME environment variable) without regard to special characters such as carriage returns or linefeeds. When given a URL containing such special characters, extra headers could be inserted into the request. This could cause scripts using Lynx to fetch data from the wrong site from servers with virtual hosting. Users of Lynx are advised to upgrade to these erratum packages which contain a patch to correct this isssue.
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": "Low"
    },
    "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 Lynx packages fix an error in the way Lynx parses its command line\narguments which can lead to faked headers being sent to a Web server.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Lynx is a character-cell Web browser, suitable for running on terminals\nsuch as the VT100.\n\nLynx constructs its HTTP queries from the command line (or WWW_HOME\nenvironment variable) without regard to special characters such as carriage\nreturns or linefeeds. When given a URL containing such special characters,\nextra headers could be inserted into the request. This could cause scripts\nusing Lynx to fetch data from the wrong site from servers with virtual hosting.\n\nUsers of Lynx are advised to upgrade to these erratum packages which\ncontain a patch to correct this isssue.",
        "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-2003:030",
        "url": "https://access.redhat.com/errata/RHSA-2003:030"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#low",
        "url": "https://access.redhat.com/security/updates/classification/#low"
      },
      {
        "category": "external",
        "summary": "http://www.mail-archive.com/bugtraq@securityfocus.com/msg08897.html",
        "url": "http://www.mail-archive.com/bugtraq@securityfocus.com/msg08897.html"
      },
      {
        "category": "external",
        "summary": "82906",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=82906"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_030.json"
      }
    ],
    "title": "Red Hat Security Advisory: lynx security update",
    "tracking": {
      "current_release_date": "2025-11-21T17:25:27+00:00",
      "generator": {
        "date": "2025-11-21T17:25:27+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.6.12"
        }
      },
      "id": "RHSA-2003:030",
      "initial_release_date": "2003-02-21T08:41:00+00:00",
      "revision_history": [
        {
          "date": "2003-02-21T08:41:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2003-01-28T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2025-11-21T17:25:27+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_name",
                "name": "Red Hat Linux Advanced Workstation 2.1",
                "product": {
                  "name": "Red Hat Linux Advanced Workstation 2.1",
                  "product_id": "Red Hat Linux Advanced Workstation 2.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:2.1::aw"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Advanced Products"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2002-1405",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616915"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "CRLF injection vulnerability in Lynx 2.8.4 and earlier allows remote attackers to inject false HTTP headers into an HTTP request that is provided on the command line, via a URL containing encoded carriage return, line feed, and other whitespace characters.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
          "Red Hat Linux Advanced Workstation 2.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2002-1405"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616915",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616915"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-1405",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-1405"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-1405",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-1405"
        }
      ],
      "release_date": "2002-08-19T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-02-21T08:41:00+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 ",
            "Red Hat Linux Advanced Workstation 2.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:030"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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