kbrain

CVE-2010-4247

MEDIUM · CVSS 5.5EPSS 0.7%EU EUVD

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.

Key facts

CVSS score
5.5 (v2.0)
Severity
MEDIUM
CVSS vector
AV:A/AC:L/Au:S/C:N/I:N/A:C
Weakness (CWE)
CWE-20
EPSS score
0.7% (54th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2010-4220)
Published
January 11, 2011
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-4220 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • citrix / xen
  • linux / linux kernel

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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