Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2010-4247

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
11/01/2011
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:A/AC:L/Au:S/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: AV:A/AC:L/Au:S/C:N/I:N/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
5.50
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:citrix:xen:*:*:*:*:*:*:*:* 3.3.2 (including)
cpe:2.3:a:citrix:xen:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.0.4:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.1.4:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.2.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.2.1:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.2.2:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.2.3:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.3.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xen:3.3.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.18:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools