fkie_cve-2011-2705
Vulnerability from fkie_nvd
Published
2011-08-05 21:55
Modified
2025-04-11 00:51
Severity ?
Summary
The SecureRandom.random_bytes function in lib/securerandom.rb in Ruby before 1.8.7-p352 and 1.9.x before 1.9.2-p290 relies on PID values for initialization, which makes it easier for context-dependent attackers to predict the result string by leveraging knowledge of random strings obtained in an earlier process with the same PID.
References
secalert@redhat.comhttp://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.htmlPatch
secalert@redhat.comhttp://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html
secalert@redhat.comhttp://redmine.ruby-lang.org/issues/4579
secalert@redhat.comhttp://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050Patch
secalert@redhat.comhttp://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog
secalert@redhat.comhttp://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/07/11/1Patch
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/07/12/14Patch
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/07/20/1Patch
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/07/20/16Patch
secalert@redhat.comhttp://www.redhat.com/support/errata/RHSA-2011-1581.html
secalert@redhat.comhttp://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/Patch
secalert@redhat.comhttp://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/Patch
secalert@redhat.comhttp://www.securityfocus.com/bid/49015
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=722415Patch
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.htmlPatch
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html
af854a3a-2127-422b-91ae-364da2661108http://redmine.ruby-lang.org/issues/4579
af854a3a-2127-422b-91ae-364da2661108http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050Patch
af854a3a-2127-422b-91ae-364da2661108http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog
af854a3a-2127-422b-91ae-364da2661108http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/11/1Patch
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/12/14Patch
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/20/1Patch
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/20/16Patch
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2011-1581.html
af854a3a-2127-422b-91ae-364da2661108http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/Patch
af854a3a-2127-422b-91ae-364da2661108http://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/Patch
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/49015
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=722415Patch
Impacted products
Vendor Product Version
ruby-lang ruby *
ruby-lang ruby 1.8.7
ruby-lang ruby 1.8.7
ruby-lang ruby 1.8.7
ruby-lang ruby 1.8.7-160
ruby-lang ruby 1.8.7-173
ruby-lang ruby 1.8.7-248
ruby-lang ruby 1.8.7-249
ruby-lang ruby 1.8.7-299
ruby-lang ruby 1.8.7-302
ruby-lang ruby 1.8.7-330
ruby-lang ruby 1.8.7-p21
ruby-lang ruby 1.9
ruby-lang ruby 1.9
ruby-lang ruby 1.9.0
ruby-lang ruby 1.9.0
ruby-lang ruby 1.9.0-0
ruby-lang ruby 1.9.0-1
ruby-lang ruby 1.9.0-2
ruby-lang ruby 1.9.0-20060415
ruby-lang ruby 1.9.0-20070709
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.1
ruby-lang ruby 1.9.2
ruby-lang ruby 1.9.2
ruby-lang ruby 1.9.2-p136
ruby-lang ruby 1.9.2-p180



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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The SecureRandom.random_bytes function in lib/securerandom.rb in Ruby before 1.8.7-p352 and 1.9.x before 1.9.2-p290 relies on PID values for initialization, which makes it easier for context-dependent attackers to predict the result string by leveraging knowledge of random strings obtained in an earlier process with the same PID."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n SecureRandom.random_bytes de lib/securerandom.rb de Ruby en versiones anteriores a 1.8.7-p352 y 1.9.x anteriores a 1.9.2-p290 se basa en valores PID para la inicializaci\u00f3n, lo que facilita a atacantes dependientes del contexto predecir la cadena resultado utilizando el conocimiento de cadenas aleatorias obtenidas en procesos anteriores con el mismo PID."
    }
  ],
  "id": "CVE-2011-2705",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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  },
  "published": "2011-08-05T21:55:04.530",
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      "source": "secalert@redhat.com",
      "tags": [
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      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html"
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

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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.


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