CVE-2012-2121
5.8 Medium
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
25.6%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux:linux_kernel | linux linux kernel | le | 3.3.3 |
References
rhn.redhat.com/errata/RHSA-2012-0676.html
rhn.redhat.com/errata/RHSA-2012-0743.html
secunia.com/advisories/50732
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4
www.openwall.com/lists/oss-security/2012/04/19/16
www.securitytracker.com/id?1027083
www.ubuntu.com/usn/USN-1577-1
www.ubuntu.com/usn/USN-2036-1
www.ubuntu.com/usn/USN-2037-1
bugzilla.redhat.com/show_bug.cgi?id=814149
github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195
Related
5.8 Medium
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.001 Low
EPSS
Percentile
25.6%