The KVM implementation in the Linux kernel before 3.3.4 does...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2012-2121
Credits & Attribution
No credits recorded in the NVD database.
References
- http://secunia.com/advisories/50732
- http://rhn.redhat.com/errata/RHSA-2012-0743.html
- http://www.securitytracker.com/id?1027083
- http://www.openwall.com/lists/oss-security/2012/04/19/16
- https://bugzilla.redhat.com/show_bug.cgi?id=814149
- https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195
- http://www.ubuntu.com/usn/USN-1577-1
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4
- http://www.ubuntu.com/usn/USN-2036-1
- http://www.ubuntu.com/usn/USN-2037-1
- http://rhn.redhat.com/errata/RHSA-2012-0676.html
More from linux
View All →Affected Vendor
linux
View all reports →Affected Software
Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.