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CVE-2011-4622

Published: Jan 27, 2012Updated: Apr 29, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
4.9MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 71.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LAu:NC:NI:NA:C
Exploitability
AV:LAccess Vector
Local
AC:LAccess Complexity
Low
Au:NAuthentication
None
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

Novell Inc.
commercial·US
openSUSEOn-prem
Operating Systems / linux-distro
redhat
commercial·USaka red hat
kvmOn-prem
Operating Systems / linux-distro
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2011-4622?We can run the check for you — a free external exposure review, no install. Check my exposure

References

http://www.redhat.com/support/errata/RHSA-2012-0051.html
redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=769721
bugzilla.redhat.com
http://www.securityfocus.com/bid/51172
securityfocus.com
and 5 more references View all →

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