VULNERABILITY INTELLIGENCE
CVE-2010-4247
CVSS score5.5 MEDIUM
EPSS probability0.73%
CISA KEVNot currently listed
Published2011-01-11
Last modified2026-06-16
CVSS vectorAV:A/AC:L/Au:S/C:N/I:N/A:C
Description
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.
Weakness classification
- CWE-20: Improper Input Validation