CVE-2011-4622

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/83564", "name": "[kvm] 20111214 [PATCH 1/2] KVM: x86: Prevent starting PIT timers in the absence of irqchip support", "tags": ["Patch"], "refsource": "MLIST"}, {"url": "http://www.redhat.com/support/errata/RHSA-2012-0051.html", "name": "RHSA-2012:0051", "tags": [], "refsource": "REDHAT"}, {"url": "http://www.openwall.com/lists/oss-security/2011/12/21/7", "name": "[oss-security] 20111221 Re: kernel: kvm: pit timer with no irqchip crashes the system", "tags": [], "refsource": "MLIST"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=769721", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=769721", "tags": [], "refsource": "CONFIRM"}, {"url": "http://www.securitytracker.com/id?1026559", "name": "1026559", "tags": [], "refsource": "SECTRACK"}, {"url": "http://www.securityfocus.com/bid/51172", "name": "51172", "tags": [], "refsource": "BID"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html", "name": "openSUSE-SU-2013:0925", "tags": [], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html", "name": "SUSE-SU-2012:0616", "tags": [], "refsource": "SUSE"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2011-4622", "ASSIGNER": "secalert@redhat.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "impactScore": 6.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}}, "publishedDate": "2012-01-27T15:55Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:redhat:kvm:83:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2017-12-29T02:29Z"}