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{"affected_release": [{"advisory": "RHSA-2011:0004", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-194.32.1.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2011-01-04T00:00:00Z"}], "bugzilla": {"description": "xen: request-processing loop is unbounded in blkback", "id": "656206", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=656206"}, "csaw": false, "cvss": {"cvss_base_score": "5.5", "cvss_scoring_vector": "AV:A/AC:L/Au:S/C:N/I:N/A:C", "status": "verified"}, "details": ["The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before 3.4.0 for the Linux kernel 2.6.18, and possibly other versions, allows guest OS users to cause a denial of service (infinite loop and CPU consumption) via a large production request index to the blkback or blktap back-end drivers. NOTE: some of these details are obtained from third party information."], "name": "CVE-2010-4247", "public_date": "2008-01-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2010-4247\nhttps://nvd.nist.gov/vuln/detail/CVE-2010-4247"], "threat_severity": "Moderate"}