CVE-2010-4247

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.

Category

5.5
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.62%
Vendor Advisory redhat.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/42789 third party advisory
http://www.vupen.com/english/advisories/2011/0024 vdb entry
http://www.redhat.com/support/errata/RHSA-2011-0004.html vendor advisory
http://www.securityfocus.com/bid/45029 vdb entry
http://www.securityfocus.com/archive/1/520102/100/0/threaded mailing list
http://secunia.com/advisories/46397 third party advisory
http://secunia.com/advisories/35093 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=656206 patch
http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/77f831cbb91d patch
http://www.openwall.com/lists/oss-security/2010/11/23/1 mailing list patch
http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/7070d34f251c patch
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://www.openwall.com/lists/oss-security/2010/11/24/8 mailing list patch

Frequently Asked Questions

What is the severity of CVE-2010-4247?
CVE-2010-4247 has been scored as a medium severity vulnerability.
How to fix CVE-2010-4247?
To fix CVE-2010-4247, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2010-4247 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2010-4247 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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