rhsa-2004_245
Vulnerability from csaf_redhat
Published
2004-06-14 15:46
Modified
2024-11-05 16:23
Summary
Red Hat Security Advisory: apache, mod_ssl security update

Notes

Topic
Updated httpd and mod_ssl packages that fix minor security issues in the Apache Web server are now available for Red Hat Enterprise Linux 2.1.
Details
The Apache HTTP Server is a powerful, full-featured, efficient, and freely-available Web server. A buffer overflow was found in the Apache proxy module, mod_proxy, which can be triggered by receiving an invalid Content-Length header. In order to exploit this issue, an attacker would need an Apache installation that was configured as a proxy to connect to a malicious site. This would cause the Apache child processing the request to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0492 to this issue. On Red Hat Enterprise Linux platforms Red Hat believes this issue cannot lead to remote code execution. This issue also does not represent a Denial of Service attack as requests will continue to be handled by other Apache child processes. A stack buffer overflow was discovered in mod_ssl which can be triggered if using the FakeBasicAuth option. If mod_ssl is sent a client certificate with a subject DN field longer than 6000 characters, a stack overflow can occur if FakeBasicAuth has been enabled. In order to exploit this issue the carefully crafted malicious certificate would have to be signed by a Certificate Authority which mod_ssl is configured to trust. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0488 to this issue. This update also fixes a DNS handling bug in mod_proxy. The mod_auth_digest module is now included in the Apache package and should be used instead of mod_digest for sites requiring Digest authentication. Red Hat Enterprise Linux 2.1 users of the Apache HTTP Server should upgrade to these erratum packages, which contains Apache version 1.3.27 with backported patches correcting these issues.
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 httpd and mod_ssl packages that fix minor security issues in\nthe Apache Web server are now available for Red Hat Enterprise Linux 2.1.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The Apache HTTP Server is a powerful, full-featured, efficient, and\nfreely-available Web server.\n\nA buffer overflow was found in the Apache proxy module, mod_proxy, which\ncan be triggered by receiving an invalid Content-Length header.  In order\nto exploit this issue, an attacker would need an Apache installation\nthat was configured as a proxy to connect to a malicious site.  This would\ncause the Apache child processing the request to crash.  The Common\nVulnerabilities and Exposures project (cve.mitre.org) has assigned the name\nCAN-2004-0492 to this issue.\n\nOn Red Hat Enterprise Linux platforms Red Hat believes this issue cannot\nlead to remote code execution.  This issue also does not represent a Denial\nof Service attack as requests will continue to be handled by other Apache\nchild processes.\n\nA stack buffer overflow was discovered in mod_ssl which can be triggered if\nusing the FakeBasicAuth option.  If mod_ssl is sent a client certificate\nwith a subject DN field longer than 6000 characters, a stack overflow can\noccur if FakeBasicAuth has been enabled.  In order to exploit this issue\nthe carefully crafted malicious certificate would have to be signed by a\nCertificate Authority which mod_ssl is configured to trust.  The Common\nVulnerabilities and Exposures project (cve.mitre.org) has assigned the name\nCAN-2004-0488 to this issue.\n\nThis update also fixes a DNS handling bug in mod_proxy.\n\nThe mod_auth_digest module is now included in the Apache package and should\nbe used instead of mod_digest for sites requiring Digest authentication.\n\nRed Hat Enterprise Linux 2.1 users of the Apache HTTP Server should upgrade\nto these erratum packages, which contains Apache version 1.3.27 with \nbackported patches correcting these issues.",
        "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-2004:245",
        "url": "https://access.redhat.com/errata/RHSA-2004:245"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "http://www.apacheweek.com/issues/04-06-11#security",
        "url": "http://www.apacheweek.com/issues/04-06-11#security"
      },
      {
        "category": "external",
        "summary": "122637",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=122637"
      },
      {
        "category": "external",
        "summary": "125704",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=125704"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2004/rhsa-2004_245.json"
      }
    ],
    "title": "Red Hat Security Advisory: apache, mod_ssl security update",
    "tracking": {
      "current_release_date": "2024-11-05T16:23:02+00:00",
      "generator": {
        "date": "2024-11-05T16:23:02+00:00",
        "engine": {
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      "id": "RHSA-2004:245",
      "initial_release_date": "2004-06-14T15:46:00+00:00",
      "revision_history": [
        {
          "date": "2004-06-14T15:46:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2004-06-14T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-05T16:23:02+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
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        "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 ",
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              {
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                "product": {
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                  "product_identification_helper": {
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              {
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                "product": {
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                  "product_identification_helper": {
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              },
              {
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                "product": {
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                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:2.1::ws"
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                }
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        ],
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2004-0488",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "430867"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Stack-based buffer overflow in the ssl_util_uuencode_binary function in ssl_util.c for Apache mod_ssl, when mod_ssl is configured to trust the issuing CA, may allow remote attackers to execute arbitrary code via a client certificate with a long subject DN.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "mod_ssl ssl_util_uuencode_binary CA issue",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
          "Red Hat Enterprise Linux ES version 2.1",
          "Red Hat Enterprise Linux WS version 2.1",
          "Red Hat Linux Advanced Workstation 2.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2004-0488"
        },
        {
          "category": "external",
          "summary": "RHBZ#430867",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=430867"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2004-0488",
          "url": "https://www.cve.org/CVERecord?id=CVE-2004-0488"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2004-0488",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2004-0488"
        }
      ],
      "release_date": "2004-05-17T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2004-06-14T15:46:00+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\nthe desired 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.\n\nIf up2date fails to connect to Red Hat Network due to SSL\nCertificate Errors, you need to install a version of the\nup2date client with an updated certificate.  The latest version of\nup2date is available from the Red Hat FTP site and may also be\ndownloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
          "product_ids": [
            "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
            "Red Hat Enterprise Linux ES version 2.1",
            "Red Hat Enterprise Linux WS version 2.1",
            "Red Hat Linux Advanced Workstation 2.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2004:245"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "mod_ssl ssl_util_uuencode_binary CA issue"
    },
    {
      "cve": "CVE-2004-0492",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "430527"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "httpd mod_proxy buffer overflow",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
          "Red Hat Enterprise Linux ES version 2.1",
          "Red Hat Enterprise Linux WS version 2.1",
          "Red Hat Linux Advanced Workstation 2.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2004-0492"
        },
        {
          "category": "external",
          "summary": "RHBZ#430527",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=430527"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2004-0492",
          "url": "https://www.cve.org/CVERecord?id=CVE-2004-0492"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2004-0492",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2004-0492"
        }
      ],
      "release_date": "2004-06-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2004-06-14T15:46:00+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\nthe desired 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.\n\nIf up2date fails to connect to Red Hat Network due to SSL\nCertificate Errors, you need to install a version of the\nup2date client with an updated certificate.  The latest version of\nup2date is available from the Red Hat FTP site and may also be\ndownloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
          "product_ids": [
            "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
            "Red Hat Enterprise Linux ES version 2.1",
            "Red Hat Enterprise Linux WS version 2.1",
            "Red Hat Linux Advanced Workstation 2.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2004:245"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "httpd mod_proxy buffer overflow"
    }
  ]
}


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