gsd-2016-0751
Vulnerability from gsd
Modified
2016-01-25 00:00
Details
There is a possible object leak which can lead to a denial of service vulnerability in Action Pack. This vulnerability has been assigned the CVE identifier CVE-2016-0751. Versions Affected: All. Not affected: None. Fixed Versions: 5.0.0.beta1.1, 4.2.5.1, 4.1.14.1, 3.2.22.1 Impact ------ A carefully crafted accept header can cause a global cache of mime types to grow indefinitely which can lead to a possible denial of service attack in Action Pack. All users running an affected release should either upgrade or use one of the workarounds immediately. Releases -------- The FIXED releases are available at the normal locations. Workarounds ----------- This attack can be mitigated by a proxy that only allows known mime types in the Accept header. Placing the following code in an initializer will also mitigate the issue: ```ruby require 'action_dispatch/http/mime_type' Mime.const_set :LOOKUP, Hash.new { |h,k| Mime::Type.new(k) unless k.blank? } ``` Patches ------- To aid users who aren't able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset. * 5-0-mime_types_leak.patch - Patch for 5.0 series * 4-2-mime_types_leak.patch - Patch for 4.2 series * 4-1-mime_types_leak.patch - Patch for 4.1 series * 3-2-mime_types_leak.patch - Patch for 3.2 series Please note that only the 4.1.x and 4.2.x series are supported at present. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases. Credits ------- Aaron Patterson <3<3
Aliases
Aliases
CVE-2016-0751


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-0751",
    "description": "actionpack/lib/action_dispatch/http/mime_type.rb in Action Pack in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not properly restrict use of the MIME type cache, which allows remote attackers to cause a denial of service (memory consumption) via a crafted HTTP Accept header.",
    "id": "GSD-2016-0751",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-0751.html",
      "https://www.debian.org/security/2016/dsa-3464",
      "https://access.redhat.com/errata/RHSA-2016:0455",
      "https://access.redhat.com/errata/RHSA-2016:0454",
      "https://access.redhat.com/errata/RHSA-2016:0296"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "actionpack",
            "purl": "pkg:gem/actionpack"
          }
        }
      ],
      "aliases": [
        "CVE-2016-0751",
        "GHSA-ffpv-c4hm-3x6v"
      ],
      "details": "There is a possible object leak which can lead to a denial of service\nvulnerability in Action Pack. This vulnerability has been\nassigned the CVE identifier CVE-2016-0751.\n\nVersions Affected:  All.\nNot affected:       None.\nFixed Versions:     5.0.0.beta1.1, 4.2.5.1, 4.1.14.1, 3.2.22.1\n\nImpact\n------\nA carefully crafted accept header can cause a global cache of mime types to\ngrow indefinitely which can lead to a possible denial of service attack in\nAction Pack.\n\nAll users running an affected release should either upgrade or use one of the\nworkarounds immediately.\n\nReleases\n--------\nThe FIXED releases are available at the normal locations.\n\nWorkarounds\n-----------\nThis attack can be mitigated by a proxy that only allows known mime types in\nthe Accept header.\n\nPlacing the following code in an initializer will also mitigate the issue:\n\n```ruby\nrequire \u0027action_dispatch/http/mime_type\u0027\n\nMime.const_set :LOOKUP, Hash.new { |h,k|\n  Mime::Type.new(k) unless k.blank?\n}\n```\n\nPatches\n-------\nTo aid users who aren\u0027t able to upgrade immediately we have provided patches for\nthe two supported release series. They are in git-am format and consist of a\nsingle changeset.\n\n* 5-0-mime_types_leak.patch - Patch for 5.0 series\n* 4-2-mime_types_leak.patch - Patch for 4.2 series\n* 4-1-mime_types_leak.patch - Patch for 4.1 series\n* 3-2-mime_types_leak.patch - Patch for 3.2 series\n\nPlease note that only the 4.1.x and 4.2.x series are supported at present. Users\nof earlier unsupported releases are advised to upgrade as soon as possible as we\ncannot guarantee the continued availability of security fixes for unsupported\nreleases.\n\nCredits\n-------\nAaron Patterson \u003c3\u003c3\n",
      "id": "GSD-2016-0751",
      "modified": "2016-01-25T00:00:00.000Z",
      "published": "2016-01-25T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://groups.google.com/forum/#!topic/rubyonrails-security/9oLY_FCzvoc"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 5.0,
          "type": "CVSS_V2"
        },
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Possible Object Leak and Denial of Service attack in Action Pack"
    }
  },
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        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2016-0751",
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      "affects": {
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        "reference_data": [
          {
            "name": "openSUSE-SU-2016:0372",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00043.html"
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            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html"
          },
          {
            "name": "[ruby-security-ann] 20160125 [CVE-2016-0751] Possible Object Leak and Denial of Service attack in Action Pack",
            "refsource": "MLIST",
            "url": "https://groups.google.com/forum/message/raw?msg=ruby-security-ann/9oLY_FCzvoc/5CDXbvpYEgAJ"
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            "name": "1034816",
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            "url": "http://www.securitytracker.com/id/1034816"
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          {
            "name": "[oss-security] 20160125 [CVE-2016-0751] Possible Object Leak and Denial of Service attack in Action Pack",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2016/01/25/9"
          },
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            "url": "http://rhn.redhat.com/errata/RHSA-2016-0296.html"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2016-0751",
      "cvss_v2": 5.0,
      "cvss_v3": 7.5,
      "date": "2016-01-25",
      "description": "There is a possible object leak which can lead to a denial of service\nvulnerability in Action Pack. This vulnerability has been\nassigned the CVE identifier CVE-2016-0751.\n\nVersions Affected:  All.\nNot affected:       None.\nFixed Versions:     5.0.0.beta1.1, 4.2.5.1, 4.1.14.1, 3.2.22.1\n\nImpact\n------\nA carefully crafted accept header can cause a global cache of mime types to\ngrow indefinitely which can lead to a possible denial of service attack in\nAction Pack.\n\nAll users running an affected release should either upgrade or use one of the\nworkarounds immediately.\n\nReleases\n--------\nThe FIXED releases are available at the normal locations.\n\nWorkarounds\n-----------\nThis attack can be mitigated by a proxy that only allows known mime types in\nthe Accept header.\n\nPlacing the following code in an initializer will also mitigate the issue:\n\n```ruby\nrequire \u0027action_dispatch/http/mime_type\u0027\n\nMime.const_set :LOOKUP, Hash.new { |h,k|\n  Mime::Type.new(k) unless k.blank?\n}\n```\n\nPatches\n-------\nTo aid users who aren\u0027t able to upgrade immediately we have provided patches for\nthe two supported release series. They are in git-am format and consist of a\nsingle changeset.\n\n* 5-0-mime_types_leak.patch - Patch for 5.0 series\n* 4-2-mime_types_leak.patch - Patch for 4.2 series\n* 4-1-mime_types_leak.patch - Patch for 4.1 series\n* 3-2-mime_types_leak.patch - Patch for 3.2 series\n\nPlease note that only the 4.1.x and 4.2.x series are supported at present. Users\nof earlier unsupported releases are advised to upgrade as soon as possible as we\ncannot guarantee the continued availability of security fixes for unsupported\nreleases.\n\nCredits\n-------\nAaron Patterson \u003c3\u003c3\n",
      "framework": "rails",
      "gem": "actionpack",
      "ghsa": "ffpv-c4hm-3x6v",
      "patched_versions": [
        "\u003e= 5.0.0.beta1.1",
        "~\u003e 4.2.5, \u003e= 4.2.5.1",
        "~\u003e 4.1.14, \u003e= 4.1.14.1",
        "~\u003e 3.2.22.1"
      ],
      "title": "Possible Object Leak and Denial of Service attack in Action Pack",
      "url": "https://groups.google.com/forum/#!topic/rubyonrails-security/9oLY_FCzvoc"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=5.0.0.alpha \u003c5.0.0.beta1.1||\u003e=4.2.0.alpha \u003c4.2.5.1||\u003e=4.0.0.alpha \u003c4.1.14.1||\u003c3.2.22.1",
          "affected_versions": "All versions starting from 5.0.0.alpha before 5.0.0.beta1.1, all versions starting from 4.2.0.alpha before 4.2.5.1, all versions starting from 4.0.0.alpha before 4.1.14.1, all versions before 3.2.22.1",
          "credit": "Aaron Patterson",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-399",
            "CWE-937"
          ],
          "date": "2019-08-08",
          "description": "A carefully crafted `Accept` header can cause a global cache of mime types to grow indefinitely which can lead to a possible denial of service attack in Action Pack.",
          "fixed_versions": [
            "3.2.22.1",
            "4.1.14.1",
            "4.2.5.1",
            "5.0.0.beta1.1"
          ],
          "identifier": "CVE-2016-0751",
          "identifiers": [
            "CVE-2016-0751"
          ],
          "package_slug": "gem/actionpack",
          "pubdate": "2016-02-15",
          "solution": "Upgrade to latest, apply patches or use workaround. See provided link.",
          "title": "Possible Object Leak and Denial of Service attack",
          "urls": [
            "https://groups.google.com/forum/#!topic/rubyonrails-security/9oLY_FCzvoc"
          ],
          "uuid": "fc808d83-e46e-4d42-9d52-c1d29f8f4dfa"
        }
      ]
    },
    "nvd.nist.gov": {
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            ],
            "operator": "OR"
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        ]
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      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2016-0751"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "actionpack/lib/action_dispatch/http/mime_type.rb in Action Pack in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not properly restrict use of the MIME type cache, which allows remote attackers to cause a denial of service (memory consumption) via a crafted HTTP Accept header."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-399"
                }
              ]
            }
          ]
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          "reference_data": [
            {
              "name": "[ruby-security-ann] 20160125 [CVE-2016-0751] Possible Object Leak and Denial of Service attack in Action Pack",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://groups.google.com/forum/message/raw?msg=ruby-security-ann/9oLY_FCzvoc/5CDXbvpYEgAJ"
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            {
              "name": "[oss-security] 20160125 [CVE-2016-0751] Possible Object Leak and Denial of Service attack in Action Pack",
              "refsource": "MLIST",
              "tags": [],
              "url": "http://www.openwall.com/lists/oss-security/2016/01/25/9"
            },
            {
              "name": "81800",
              "refsource": "BID",
              "tags": [],
              "url": "http://www.securityfocus.com/bid/81800"
            },
            {
              "name": "SUSE-SU-2016:1146",
              "refsource": "SUSE",
              "tags": [],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00053.html"
            },
            {
              "name": "FEDORA-2016-94e71ee673",
              "refsource": "FEDORA",
              "tags": [],
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178043.html"
            },
            {
              "name": "RHSA-2016:0296",
              "refsource": "REDHAT",
              "tags": [],
              "url": "http://rhn.redhat.com/errata/RHSA-2016-0296.html"
            },
            {
              "name": "FEDORA-2016-f486068393",
              "refsource": "FEDORA",
              "tags": [],
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178067.html"
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              "name": "openSUSE-SU-2016:0372",
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              "tags": [],
              "url": "http://lists.opensuse.org/opensuse-updates/2016-02/msg00034.html"
            },
            {
              "name": "DSA-3464",
              "refsource": "DEBIAN",
              "tags": [],
              "url": "http://www.debian.org/security/2016/dsa-3464"
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            {
              "name": "1034816",
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              "tags": [],
              "url": "http://www.securitytracker.com/id/1034816"
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "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"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM"
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-08-08T15:43Z",
      "publishedDate": "2016-02-16T02:59Z"
    }
  }
}


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