github - ghsa-hg78-4f6x-99wq

ghsa-hg78-4f6x-99wq

Vulnerability from github

Published

2018-11-15 15:58

Modified

2023-08-28 12:46

Severity ?

7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

Rack vulnerable to Denial of Service

Details

There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.4"
            },
            {
              "fixed": "2.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-16470"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:40:04Z",
    "nvd_published_at": "2018-11-13T23:29:00Z",
    "severity": "HIGH"
  },
  "details": "There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.",
  "id": "GHSA-hg78-4f6x-99wq",
  "modified": "2023-08-28T12:46:14Z",
  "published": "2018-11-15T15:58:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16470"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:3172"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rack/rack"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2018-16470.yml"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#!msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#!topic/ruby-security-ann/Dz4sRl-ktKk"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Rack vulnerable to Denial of Service"
}

cve-2018-16470

Vulnerability from cvelistv5

Published

2018-11-13 23:00

Modified

2024-08-05 10:24

Severity ?

Summary

References

▼	URL	Tags
	https://groups.google.com/forum/#%21msg/rubyonrails-security/U_x-YkfuVTg/xhvYAmp6AAAJ	x_refsource_MISC
	https://access.redhat.com/errata/RHSA-2019:3172	vendor-advisory, x_refsource_REDHAT

Impacted products

Vendor

Product

Version

▼

Rack

Version: 2.0.6

Show details on NVD website

JSON

To clipboard

{
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
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              "x_refsource_REDHAT",
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            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3172"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Rack",
          "vendor": "Rack",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.6"
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  "cveMetadata": {
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    "cveId": "CVE-2018-16470",
    "datePublished": "2018-11-13T23:00:00",
    "dateReserved": "2018-09-04T00:00:00",
    "dateUpdated": "2024-08-05T10:24:32.612Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

gsd-2018-16470

Vulnerability from gsd

Modified

2018-11-05 00:00

Details

There is a possible DoS vulnerability in the multipart parser in Rack. This vulnerability has been assigned the CVE identifier CVE-2018-16470. Versions Affected: 2.0.4, 2.0.5 Not affected: <= 2.0.3 Fixed Versions: 2.0.6 Impact ------ There is a possible DoS vulnerability in the multipart parser in Rack. Carefully crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size. Impacted code can look something like this: ``` Rack::Request.new(env).params ``` But any code that uses the multi-part parser may be vulnerable. Rack users that have manually adjusted the buffer size in the multipart parser may be vulnerable as well. All users running an affected release should either upgrade or use one of the workarounds immediately. Releases -------- The 2.0.6 release is available at the normal locations. Workarounds ----------- To work around this issue, the following code can be used: ``` require "rack/multipart/parser" Rack::Multipart::Parser.send :remove_const, :BUFSIZE Rack::Multipart::Parser.const_set :BUFSIZE, 16384 ```

Aliases

CVE-2018-16470

JSON

To clipboard

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  "GSD": {
    "alias": "CVE-2018-16470",
    "description": "There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.",
    "id": "GSD-2018-16470",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-16470.html",
      "https://access.redhat.com/errata/RHSA-2019:3172"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "rack",
            "purl": "pkg:gem/rack"
          }
        }
      ],
      "aliases": [
        "CVE-2018-16470",
        "GHSA-hg78-4f6x-99wq"
      ],
      "details": "There is a possible DoS vulnerability in the multipart parser in Rack. This\nvulnerability has been assigned the CVE identifier CVE-2018-16470.\n\nVersions Affected:  2.0.4, 2.0.5\nNot affected:       \u003c= 2.0.3\nFixed Versions:     2.0.6\n\nImpact\n------\nThere is a possible DoS vulnerability in the multipart parser in Rack.\nCarefully crafted requests can cause the multipart parser to enter a\npathological state, causing the parser to use CPU resources disproportionate to\nthe request size.\n\nImpacted code can look something like this:\n\n```\nRack::Request.new(env).params\n```\n\nBut any code that uses the multi-part parser may be vulnerable.\n\nRack users that have manually adjusted the buffer size in the multipart parser\nmay be vulnerable as well.\n\nAll users running an affected release should either upgrade or use one of the\nworkarounds immediately.\n\nReleases\n--------\nThe 2.0.6 release is available at the normal locations.\n\nWorkarounds\n-----------\nTo work around this issue, the following code can be used:\n\n```\nrequire \"rack/multipart/parser\"\n\nRack::Multipart::Parser.send :remove_const, :BUFSIZE\nRack::Multipart::Parser.const_set :BUFSIZE, 16384\n```\n",
      "id": "GSD-2018-16470",
      "modified": "2018-11-05T00:00:00.000Z",
      "published": "2018-11-05T00:00:00.000Z",
      "references": [
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          "url": "https://groups.google.com/forum/#!topic/ruby-security-ann/Dz4sRl-ktKk"
        }
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      "ghsa": "hg78-4f6x-99wq",
      "patched_versions": [
        "\u003e= 2.0.6"
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          "description": "There is a possible DoS vulnerability in the multipart parser in Rack. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.",
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          "package_slug": "gem/rack",
          "pubdate": "2018-11-13",
          "solution": "Upgrade to version 2.0.6 or above.",
          "title": "Uncontrolled Resource Consumption",
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            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
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        },
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            "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",
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          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-10-09T23:36Z",
      "publishedDate": "2018-11-13T23:29Z"
    }
  }
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

ghsa-hg78-4f6x-99wq

Vulnerability from github

cve-2018-16470

Vulnerability from cvelistv5

gsd-2018-16470

Vulnerability from gsd

Tags

Sightings

Nomenclature