Denial of Service Vulnerability in Xen Linux Kernel Drivers

CVE-2010-4247 · MEDIUM Severity

AV:A/AC:L/AU:S/C:N/I:N/A:C

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.

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