rhsa-2011_1300
Vulnerability from csaf_redhat
Published
2011-09-15 17:42
Modified
2024-11-05 17:36
Summary
Red Hat Security Advisory: httpd security update

Notes

Topic
Updated httpd packages that fix one security issue are now available for Red Hat Enterprise Linux 3 Extended Life Cycle Support. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
The Apache HTTP Server is a popular web server. A flaw was found in the way the Apache HTTP Server handled Range HTTP headers. A remote attacker could use this flaw to cause httpd to use an excessive amount of memory and CPU time via HTTP requests with a specially-crafted Range header. (CVE-2011-3192) All httpd users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.
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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{
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      {
        "category": "summary",
        "text": "Updated httpd packages that fix one security issue are now available for\nRed Hat Enterprise Linux 3 Extended Life Cycle Support.\n\nThe Red Hat Security Response Team has rated this update as having\nimportant security impact. A Common Vulnerability Scoring System (CVSS)\nbase score, which gives a detailed severity rating, is available from the\nCVE link in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The Apache HTTP Server is a popular web server.\n\nA flaw was found in the way the Apache HTTP Server handled Range HTTP\nheaders. A remote attacker could use this flaw to cause httpd to use an\nexcessive amount of memory and CPU time via HTTP requests with a\nspecially-crafted Range header. (CVE-2011-3192)\n\nAll httpd users should upgrade to these updated packages, which contain a\nbackported patch to correct this issue. After installing the updated\npackages, the httpd daemon must be restarted for the update to take effect.",
        "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"
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  "vulnerabilities": [
    {
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      "discovery_date": "2011-08-20T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "732928"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "httpd: multiple ranges DoS",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Before updated packages are deployed, users can deploy configuration changes to mitigate this flaw:\nhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3192#c18",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "3ES-ELS:httpd-0:2.0.46-78.ent.i386",
          "3ES-ELS:httpd-0:2.0.46-78.ent.src",
          "3ES-ELS:httpd-debuginfo-0:2.0.46-78.ent.i386",
          "3ES-ELS:httpd-devel-0:2.0.46-78.ent.i386",
          "3ES-ELS:mod_ssl-1:2.0.46-78.ent.i386"
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2011-3192"
        },
        {
          "category": "external",
          "summary": "RHBZ#732928",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=732928"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2011-3192",
          "url": "https://www.cve.org/CVERecord?id=CVE-2011-3192"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-3192",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-3192"
        }
      ],
      "release_date": "2011-08-20T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2011-09-15T17:42:00+00:00",
          "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/kb/docs/DOC-11259",
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            "3AS-ELS:httpd-debuginfo-0:2.0.46-78.ent.i386",
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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2011:1300"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "products": [
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            "3AS-ELS:httpd-0:2.0.46-78.ent.src",
            "3AS-ELS:httpd-debuginfo-0:2.0.46-78.ent.i386",
            "3AS-ELS:httpd-devel-0:2.0.46-78.ent.i386",
            "3AS-ELS:mod_ssl-1:2.0.46-78.ent.i386",
            "3ES-ELS:httpd-0:2.0.46-78.ent.i386",
            "3ES-ELS:httpd-0:2.0.46-78.ent.src",
            "3ES-ELS:httpd-debuginfo-0:2.0.46-78.ent.i386",
            "3ES-ELS:httpd-devel-0:2.0.46-78.ent.i386",
            "3ES-ELS:mod_ssl-1:2.0.46-78.ent.i386"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "httpd: multiple ranges DoS"
    }
  ]
}


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