CVE-2011-4622

CVE Details

Release Date:

2012-01-27

Description

The create_pit_timer function in arch/x86/kvm/i8254.c in KVM 83, and possibly other versions, does not properly handle when Programmable Interval Timer (PIT) interrupt requests (IRQs) when a virtual interrupt controller (irqchip) is not available, which allows local users to cause a denial of service (NULL pointer dereference) by starting a timer.

See more information about CVE-2011-4622 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	4.9	Base Metrics:	AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector:	Local network	Attack Complexity:	Low
Authentication:	None required	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2012-2003	2012-03-07
Oracle Linux version 5 (kvm)	ELSA-2012-0051	2012-01-23
Oracle Linux version 5 (mlnx_en-2.6.32-300.11.1.el5uek)	ELSA-2012-2003	2012-03-07
Oracle Linux version 5 (ofa-2.6.32-300.11.1.el5uek)	ELSA-2012-2003	2012-03-07
Oracle Linux version 6 (kernel)	ELSA-2012-0350	2012-03-06
Oracle Linux version 6 (kernel-uek)	ELSA-2012-2003	2012-03-07
Oracle Linux version 6 (mlnx_en-2.6.32-300.11.1.el6uek)	ELSA-2012-2003	2012-03-07
Oracle Linux version 6 (ofa-2.6.32-300.11.1.el6uek)	ELSA-2012-2003	2012-03-07

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team