What is CVE-2010-4247?

CVE-2010-4247 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2010-4247 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2010-4247?

CVE-2010-4247 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is AV:A/AC:L/Au:S/C:N/I:N/A:C.

Is there a patch available for CVE-2010-4247?

No patch is currently available for CVE-2010-4247. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2010-4247 actively exploited?

CVE-2010-4247 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2010-4247

Medium

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.

Package Linux Kernel

Published 2011-01-11

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

5.5

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

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

Weakness type

CWE-20

CVE-2010-4247 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2010-4247 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Secunia
http://secunia.com/advisories/35093

Vendor Advisory
Secunia
http://secunia.com/advisories/42789
Secunia
http://secunia.com/advisories/46397
Red Hat
http://www.redhat.com/support/errata/RHSA-2011-0004.html
Securityfocus
http://www.securityfocus.com/archive/1/520102/100/0/threaded
Securityfocus
http://www.securityfocus.com/bid/45029
Vmware
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
Vupen
http://www.vupen.com/english/advisories/2011/0024
Kernel patch commit
http://www.openwall.com/lists/oss-security/2010/11/23/1
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2010/11/24/8
Patch
Kernel patch commit
http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/7070d34f251c
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2010-4247

Severity Medium

CVSS score 5.5 / 10

CVSS version 2.0

Published 2011-01-11

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2010-4247?

CVE-2010-4247 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2010-4247 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2010-4247?

CVE-2010-4247 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:A/AC:L/Au:S/C:N/I:N/A:C.
Is there a patch available for CVE-2010-4247?

No patch is currently available for CVE-2010-4247. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2010-4247 actively exploited?

No — CVE-2010-4247 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Input Validation (CWE-20)?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →