01 Record
CVE-2012-0045
The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 Description
The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to
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
- 1.01% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 62.8% 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
- 2012-07-03 16:00Z14 YR AGO
- Last updated
- 2024-08-06 18:09Z2 YR AGO
- Reserved
- 2011-12-07
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 80bc3e5b64c5de3b4a82db242a3600879d4119a9a43caf066ff2c85ed7227a26
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=773370
- lists.opensuse.orgSUSE-SU-2012:0616http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- www.openwall.com[oss-security] 20120111 Re: CVE request -- kernel: kvm: syscall instruction induced guest panichttp://www.openwall.com/lists/oss-security/2012/01/12/2
- github.comhttps://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84