CVE-2011-4622

MEDIUM
New! CVE Severity Now Using CVSS v3

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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.

References

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html

http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/83564

http://www.openwall.com/lists/oss-security/2011/12/21/7

http://www.redhat.com/support/errata/RHSA-2012-0051.html

http://www.securityfocus.com/bid/51172

http://www.securitytracker.com/id?1026559

https://bugzilla.redhat.com/show_bug.cgi?id=769721

Details

Source: MITRE

Published: 2012-01-27

Updated: 2017-12-29

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:redhat:kvm:83:*:*:*:*:*:*:*

Tenable Plugins

View all (23 total)

IDNameProductFamilySeverity
69662Amazon Linux AMI : kernel (ALAS-2012-55)NessusAmazon Linux Local Security Checks
high
68669Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2003)NessusOracle Linux Local Security Checks
high
68491Oracle Linux 6 : kernel (ELSA-2012-0350)NessusOracle Linux Local Security Checks
high
68434Oracle Linux 5 : kvm (ELSA-2012-0051)NessusOracle Linux Local Security Checks
high
64173SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 6227 / 6229 / 6230)NessusSuSE Local Security Checks
high
64021RHEL 5 : kvm (RHSA-2012:0051)NessusRed Hat Local Security Checks
high
61277Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20120306)NessusScientific Linux Local Security Checks
high
61222Scientific Linux Security Update : kvm on SL5.x x86_64 (20120123)NessusScientific Linux Local Security Checks
high
58275CentOS 6 : kernel (CESA-2012:0350)NessusCentOS Local Security Checks
high
58270Ubuntu 10.04 LTS : linux vulnerabilities (USN-1389-1)NessusUbuntu Local Security Checks
high
58269Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1388-1)NessusUbuntu Local Security Checks
high
58268Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1387-1)NessusUbuntu Local Security Checks
high
58267Ubuntu 10.04 LTS : linux-lts-backport-natty vulnerabilities (USN-1386-1)NessusUbuntu Local Security Checks
medium
58265Ubuntu 10.04 LTS : linux-lts-backport-oneiric vulnerabilities (USN-1384-1)NessusUbuntu Local Security Checks
high
58261RHEL 6 : kernel (RHSA-2012:0350)NessusRed Hat Local Security Checks
high
57937Ubuntu 11.10 : linux vulnerabilities (USN-1363-1)NessusUbuntu Local Security Checks
high
57936Ubuntu 11.04 : linux vulnerabilities (USN-1362-1)NessusUbuntu Local Security Checks
high
57935Ubuntu 10.10 : linux vulnerabilities (USN-1361-1)NessusUbuntu Local Security Checks
high
57668CentOS 5 : kvm (CESA-2012:0051)NessusCentOS Local Security Checks
high
57583Debian DSA-2389-1 : linux-2.6 - privilege escalation/denial of service/information leakNessusDebian Local Security Checks
medium
57549Fedora 15 : kernel-2.6.41.9-1.fc15 (2012-0492)NessusFedora Local Security Checks
medium
57453Fedora 16 : kernel-3.1.7-1.fc16 (2012-0145)NessusFedora Local Security Checks
medium
801513CentOS RHSA-2012-0350 Security CheckLog Correlation EngineGeneric
high