rhsa-2003:083
Vulnerability from csaf_redhat
Published
2003-06-18 10:49
Modified
2024-11-21 22:41
Summary
Red Hat Security Advisory: apache security update for Stronghold

Notes

Topic
Updated Apache packages are available which fix a security issue by preventing control characters from being written to the error log. The updated packages also include a minor bug fix for mod_proxy.
Details
The Apache HTTP server is a powerful, full-featured, efficient, and freely-available Web server. The Apache Web server before 1.3.25 does not prevent escape sequences from being written to the error and access logs. This could allow an attacker to embed arbitrary escape sequences into the log file. A recent paper by HD Moore highlighted several issues where common terminal emulator software (such as xterm) can be remotely abused or exploited by displaying arbitrary escape sequences. If Apache is configured to act as a reverse proxy by specifying the backend server using a numeric IP address, the mod_proxy module will perform a redundant reverse DNS lookup on the IP address, causing a delay in request processing. Users are advised to install these updated packages which contain: a patched version of Apache which prevents control characters from being written to log files; and a patched version of mod_proxy which does not perform reverse DNS lookups unless necessary.
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": {
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      "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 Apache packages are available which fix a security issue by\npreventing control characters from being written to the error log. The\nupdated packages also include a minor bug fix for mod_proxy.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The Apache HTTP server is a powerful, full-featured, efficient, and\nfreely-available Web server.\n\nThe Apache Web server before 1.3.25 does not prevent escape sequences from\nbeing written to the error and access logs.  This could allow an attacker\nto embed arbitrary escape sequences into the log file.  A recent paper by\nHD Moore highlighted several issues where common terminal emulator software\n(such as xterm) can be remotely abused or exploited by displaying arbitrary\nescape sequences. \n\nIf Apache is configured to act as a reverse proxy by specifying the backend\nserver using a numeric IP address, the mod_proxy module will perform a\nredundant reverse DNS lookup on the IP address, causing a delay in request\nprocessing.\n\nUsers are advised to install these updated packages which contain: a\npatched version of Apache which prevents control characters from being \nwritten to log files; and a patched version of mod_proxy which does not\nperform reverse DNS lookups unless necessary.",
        "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-2003:083",
        "url": "https://access.redhat.com/errata/RHSA-2003:083"
      },
      {
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        "url": "https://access.redhat.com/security/updates/classification/#low"
      },
      {
        "category": "external",
        "summary": "http://www.digitaldefense.net/labs/papers/Termulation.txt",
        "url": "http://www.digitaldefense.net/labs/papers/Termulation.txt"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_083.json"
      }
    ],
    "title": "Red Hat Security Advisory: apache security update for Stronghold",
    "tracking": {
      "current_release_date": "2024-11-21T22:41:54+00:00",
      "generator": {
        "date": "2024-11-21T22:41:54+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2003:083",
      "initial_release_date": "2003-06-18T10:49:00+00:00",
      "revision_history": [
        {
          "date": "2003-06-18T10:49:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2003-06-18T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:41:54+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Stronghold 4 for Red Hat Enterprise Linux",
                "product": {
                  "name": "Stronghold 4 for Red Hat Enterprise Linux",
                  "product_id": "Stronghold 4 for Red Hat Enterprise Linux",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:rhel_stronghold:4"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Stronghold 4.0 for Red Hat Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2003-0020",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616937"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Apache does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
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        ]
      },
      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0020"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616937",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616937"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0020",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0020"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0020",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0020"
        }
      ],
      "release_date": "2003-02-24T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-06-18T10:49:00+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": [
            "Stronghold 4 for Red Hat Enterprise Linux"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:083"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "security flaw"
    },
    {
      "cve": "CVE-2003-0083",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616961"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Apache 1.3 before 1.3.25 and Apache 2.0 before version 2.0.46 does not filter terminal escape sequences from its access logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences, a different vulnerability than CVE-2003-0020.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Stronghold 4 for Red Hat Enterprise Linux"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0083"
        },
        {
          "category": "external",
          "summary": "RHBZ#1616961",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616961"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0083",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0083"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0083",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0083"
        }
      ],
      "release_date": "2003-02-24T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-06-18T10:49:00+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": [
            "Stronghold 4 for Red Hat Enterprise Linux"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:083"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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