CVE-2011-2705

{"id": "CVE-2011-2705", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2011-08-05T21:55:04.530", "references": [{"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063062.html", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063071.html", "source": "secalert@redhat.com"}, {"url": "http://redmine.ruby-lang.org/issues/4579", "source": "secalert@redhat.com"}, {"url": "http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=32050", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7_352/ChangeLog", "source": "secalert@redhat.com"}, {"url": "http://svn.ruby-lang.org/repos/ruby/tags/v1_9_2_290/ChangeLog", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2011/07/11/1", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2011/07/12/14", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2011/07/20/1", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2011/07/20/16", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.redhat.com/support/errata/RHSA-2011-1581.html", "source": "secalert@redhat.com"}, {"url": "http://www.ruby-lang.org/en/news/2011/07/02/ruby-1-8-7-p352-released/", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.ruby-lang.org/en/news/2011/07/15/ruby-1-9-2-p290-is-released/", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/49015", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=722415", "tags": ["Patch"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}]}], "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."}], "lastModified": "2012-01-19T03:58:35.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2C145137-6CD4-4E6D-B17E-F21F88E272BF", "versionEndIncluding": "1.8.7-334"}, {"criteria": "cpe:2.3:a:ruby-lang:ruby:1.8.7:p22:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1FE05F3A-A8B5-45EE-BF52-D55E2768F890"}, {"criteria": "cpe:2.3:a:ruby-lang:ruby:1.8.7:p71:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C6D66E2-3E10-4DEA-9E6B-53A5DE78AFCF"}, {"criteria": 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