01 Record
CVE-2012-2121
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
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.41% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 35.3% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2012-05-17 10:00Z14 YR AGO
- Last updated
- 2024-08-06 19:26Z2 YR AGO
- Reserved
- 2012-04-04
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 494fbd12fcdbe45bff2648a70c49e78af235679c9f308a88814a5462c584bad6
05 Affected products
VendorProductVersionsPlatforms
06 References
- secunia.com50732http://secunia.com/advisories/50732
- rhn.redhat.comRHSA-2012:0743http://rhn.redhat.com/errata/RHSA-2012-0743.html
- www.securitytracker.com1027083http://www.securitytracker.com/id?1027083
- www.openwall.com[oss-security] 20120419 Re: CVE request -- kernel: kvm: device assignment page leakhttp://www.openwall.com/lists/oss-security/2012/04/19/16
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=814149
- github.comhttps://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195
- www.ubuntu.comUSN-1577-1http://www.ubuntu.com/usn/USN-1577-1
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4
- www.ubuntu.comUSN-2036-1http://www.ubuntu.com/usn/USN-2036-1
- www.ubuntu.comUSN-2037-1http://www.ubuntu.com/usn/USN-2037-1
- rhn.redhat.comRHSA-2012:0676http://rhn.redhat.com/errata/RHSA-2012-0676.html