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.
Published: 2012-05-17
Score: 4.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2668-1 linux-2.6 security update
EUVD EUVD EUVD-2012-2123 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.
Ubuntu USN Ubuntu USN USN-1457-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1470-1 Linux kernel (Natty backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1471-1 Linux kernel (Oneiric backport) vulnerabilities
Ubuntu USN Ubuntu USN USN-1472-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1473-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-1474-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1476-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-1577-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-2036-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2037-1 Linux kernel (EC2) vulnerabilities
History

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Linux Linux Kernel
Redhat Enterprise Linux Rhel Virtualization
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T19:26:08.276Z

Reserved: 2012-04-04T00:00:00.000Z

Link: CVE-2012-2121

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2012-05-17T11:00:38.210

Modified: 2026-04-29T01:13:23.040

Link: CVE-2012-2121

cve-icon Redhat

Severity : Moderate

Publid Date: 2012-03-29T00:00:00Z

Links: CVE-2012-2121 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses