CVE-2012-2121

N/A Unknown
Published: May 17, 2012 Modified: April 29, 2026
View on NVD

Description

The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://secunia.com/advisories/50732
Source: secalert@redhat.com
http://www.ubuntu.com/usn/USN-1577-1
Source: secalert@redhat.com
http://www.ubuntu.com/usn/USN-2036-1
Source: secalert@redhat.com
http://www.ubuntu.com/usn/USN-2037-1
Source: secalert@redhat.com
http://rhn.redhat.com/errata/RHSA-2012-0676.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://rhn.redhat.com/errata/RHSA-2012-0743.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/50732
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2012/04/19/16
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id?1027083
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-1577-1
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-2036-1
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-2037-1
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=814149
Source: af854a3a-2127-422b-91ae-364da2661108

22 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.4%
33th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

linux