{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2012-09-05T00:00:00.000Z","descriptions":[{"lang":"en","value":"The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-06-30T16:57:01.000Z","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat"},"references":[{"name":"55082","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/55082"},{"tags":["x_refsource_CONFIRM"],"url":"http://xenbits.xen.org/hg/xen-4.1-testing.hg/rev/6779ddca8593"},{"name":"[Xen-announce] 20120905 Xen Security Advisory 13 (CVE-2012-3495) - 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