CVEvulnerability
CVE-2012-2121
4.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2012-05-17
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 4.9 MEDIUM — AV:L/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-264
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.
Affected configurations
• linux linux kernel (<= 3.3.3)
Related
Weakness · not in database (1)
References
- http://rhn.redhat.com/errata/RHSA-2012-0676.html rhn.redhat.com
- http://rhn.redhat.com/errata/RHSA-2012-0743.html rhn.redhat.com
- http://secunia.com/advisories/50732 secunia.com
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4 www.kernel.org
- http://www.openwall.com/lists/oss-security/2012/04/19/16 www.openwall.com
- http://www.securitytracker.com/id?1027083 www.securitytracker.com
- http://www.ubuntu.com/usn/USN-1577-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-2036-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-2037-1 www.ubuntu.com
- https://bugzilla.redhat.com/show_bug.cgi?id=814149 bugzilla.redhat.com
- https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195 github.com
- http://rhn.redhat.com/errata/RHSA-2012-0676.html rhn.redhat.com
- http://rhn.redhat.com/errata/RHSA-2012-0743.html rhn.redhat.com
- http://secunia.com/advisories/50732 secunia.com
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4 www.kernel.org
- http://www.openwall.com/lists/oss-security/2012/04/19/16 www.openwall.com
- http://www.securitytracker.com/id?1027083 www.securitytracker.com
- http://www.ubuntu.com/usn/USN-1577-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-2036-1 www.ubuntu.com
- http://www.ubuntu.com/usn/USN-2037-1 www.ubuntu.com
- https://bugzilla.redhat.com/show_bug.cgi?id=814149 bugzilla.redhat.com
- https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195 github.com