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{"acknowledgement": "Red Hat would like to thank oCERT for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:0070", "cpe": "cpe:/o:redhat:enterprise_linux:4", "package": "ruby-0:1.8.1-18.el4", "product_name": "Red Hat Enterprise Linux 4", "release_date": "2012-01-30T00:00:00Z"}, {"advisory": "RHSA-2012:0070", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "ruby-0:1.8.5-22.el5_7.1", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-01-30T00:00:00Z"}, {"advisory": "RHSA-2012:0069", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "ruby-0:1.8.7.352-4.el6_2", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-01-30T00:00:00Z"}], "bugzilla": {"description": "ruby: hash table collisions CPU usage DoS (oCERT-2011-003)", "id": "750564", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=750564"}, "csaw": false, "cvss": {"cvss_base_score": "5.0", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "status": "verified"}, "details": ["Ruby (aka CRuby) before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table."], "name": "CVE-2011-4815", "public_date": "2011-12-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4815\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4815"], "threat_severity": "Moderate"}