rhsa-2003_240
Vulnerability from csaf_redhat
Published
2003-09-04 07:40
Modified
2024-11-21 22:48
Summary
Red Hat Security Advisory: : Updated httpd packages fix Apache security vulnerabilities

Notes

Topic
Updated httpd packages that fix several minor security issues are now available for Red Hat Linux 8.0 and 9.
Details
The Apache HTTP server is a powerful, full-featured, efficient, and freely-available Web server. Ben Laurie found a bug in the optional renegotiation code in mod_ssl included with Apache 2 versions 2.0.35 through 2.0.46 that can cause cipher suite restrictions to be ignored. This is triggered if optional renegotiation is used (SSLOptions +OptRenegotiate) along with verification of client certificates and a change to the cipher suite over the renegotiation. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0192 to this issue. Yoshioka Tsuneo found that unpatched versions of Apache 2 versions 2.0.35 to 2.0.46 have a bug that can cause a remote Denial of Service. When a client requests that proxy ftp connect to a ftp server with an IPv6 address, and the proxy is unable to create an IPv6 socket, an infinite loop occurs. The Common Vulnerabilities and Exposures project has assigned the name CAN-2003-0254 to this issue. Saheed Akhtar found that unpatched Apache 2 versions 2.0.35 through 2.0.46 have a bug in the prefork MPM when handling accept errors. In a server with multiple listening sockets, a certain error returned by accept() on a rarely-accessed port can cause a temporary denial of service. The Common Vulnerabilities and Exposures project has assigned the name CAN-2003-0253 to this issue. It is possible for Apache 2 to get into an infinite loop handling internal redirects and nested subrequests. A patch for this issue adds the new LimitInternalRecursion directive. All users of the Apache HTTP Web Server are advised to upgrade to the applicable errata packages, which contain back-ported fixes correcting these issues, and are applied to Apache version 2.0.40. After the errata packages are installed, restart the Web service by running (as root) the following command: /sbin/service httpd restart
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.


To clipboard 

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        "text": "Updated httpd packages that fix several minor security issues are now\navailable for Red Hat Linux 8.0 and 9.",
        "title": "Topic"
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        "text": "The Apache HTTP server is a powerful, full-featured, efficient, and\nfreely-available Web server.\n\nBen Laurie found a bug in the optional renegotiation code in mod_ssl\nincluded with Apache 2 versions 2.0.35 through 2.0.46 that can cause\ncipher suite restrictions to be ignored. This is triggered if optional\nrenegotiation is used (SSLOptions +OptRenegotiate) along with verification\nof client certificates and a change to the cipher suite over the\nrenegotiation.  The Common Vulnerabilities and Exposures project\n(cve.mitre.org) has assigned the name CAN-2003-0192 to this issue.\n\nYoshioka Tsuneo found that unpatched versions of Apache 2 versions 2.0.35\nto 2.0.46 have a bug that can cause a remote Denial of Service. When a\nclient requests that proxy ftp connect to a ftp server with an IPv6\naddress, and the proxy is unable to create an IPv6 socket, an infinite loop\noccurs.  The Common Vulnerabilities and Exposures project has assigned the\nname CAN-2003-0254 to this issue.\n\nSaheed Akhtar found that unpatched Apache 2 versions 2.0.35 through 2.0.46\nhave a bug in the prefork MPM when handling accept errors. In a server with\nmultiple listening sockets, a certain error returned by accept() on a\nrarely-accessed port can cause a temporary denial of service.  The Common\nVulnerabilities and Exposures project has assigned the name CAN-2003-0253\nto this issue.\n\nIt is possible for Apache 2 to get into an infinite loop handling internal\nredirects and nested subrequests. A patch for this issue adds the new\nLimitInternalRecursion directive.\n\nAll users of the Apache HTTP Web Server are advised to upgrade to the\napplicable errata packages, which contain back-ported fixes correcting\nthese issues, and are applied to Apache version 2.0.40.\n\nAfter the errata packages are installed, restart the Web service by running\n(as root) the following command:\n\n/sbin/service httpd restart",
        "title": "Details"
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    "title": "Red Hat Security Advisory: : Updated httpd packages fix Apache security vulnerabilities",
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          "text": "Apache 2 before 2.0.47, and certain versions of mod_ssl for Apache 1.3, do not properly handle \"certain sequences of per-directory renegotiations and the SSLCipherSuite directive being used to upgrade from a weak ciphersuite to a strong one,\" which could cause Apache to use the weak ciphersuite.",
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          "date": "2003-09-04T07:40:00+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.\n\nIf up2date fails to connect to Red Hat Network due to SSL Certificate \nErrors, you need to install a version of the up2date client with an updated \ncertificate.  The latest version of up2date is available from the Red Hat \nFTP site and may also be downloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
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            "Red Hat Linux 9"
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          "restart_required": {
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          "details": "Moderate"
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      ],
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        {
          "category": "description",
          "text": "The prefork MPM in Apache 2 before 2.0.47 does not properly handle certain errors from accept, which could lead to a denial of service.",
          "title": "Vulnerability description"
        },
        {
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          "text": "security flaw",
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          "summary": "RHBZ#1617012",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1617012"
        },
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0253",
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        {
          "category": "vendor_fix",
          "date": "2003-09-04T07:40:00+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.\n\nIf up2date fails to connect to Red Hat Network due to SSL Certificate \nErrors, you need to install a version of the up2date client with an updated \ncertificate.  The latest version of up2date is available from the Red Hat \nFTP site and may also be downloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
          "product_ids": [
            "Red Hat Linux 8.0",
            "Red Hat Linux 9"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:240"
        }
      ],
      "title": "security flaw"
    },
    {
      "cve": "CVE-2003-0254",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1617013"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Apache 2 before 2.0.47, when running on an IPv6 host, allows attackers to cause a denial of service (CPU consumption by infinite loop) when the FTP proxy server fails to create an IPv6 socket.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Linux 8.0",
          "Red Hat Linux 9"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0254"
        },
        {
          "category": "external",
          "summary": "RHBZ#1617013",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1617013"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0254",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0254"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0254",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0254"
        }
      ],
      "release_date": "2003-07-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-09-04T07:40:00+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.\n\nIf up2date fails to connect to Red Hat Network due to SSL Certificate \nErrors, you need to install a version of the up2date client with an updated \ncertificate.  The latest version of up2date is available from the Red Hat \nFTP site and may also be downloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
          "product_ids": [
            "Red Hat Linux 8.0",
            "Red Hat Linux 9"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:240"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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