01 Record
CVE-2009-4031
The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel before 2.6.32-rc8-next-20091125 tries to interpret instructions that contain too many
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 Description
The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel before 2.6.32-rc8-next-20091125 tries to interpret instructions that contain too many
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
- 3.11% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 87.6% 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
- 2009-11-27 19:00Z16 YR AGO
- Last updated
- 2024-08-07 06:45Z2 YR AGO
- Reserved
- 2009-11-20
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- f23a10ad8dcf49e49089c4bcd190f3f28222f2bec56444acce6d3813759da893
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.openwall.com[oss-security] 20091125 Re: CVE request: kernel: KVM: x86 emulator: limit instructions to 15 byteshttp://www.openwall.com/lists/oss-security/2009/11/25/1
- secunia.com37720http://secunia.com/advisories/37720
- lists.opensuse.orgSUSE-SA:2010:018http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz
- oval.cisecurity.orgoval:org.mitre.oval:def:11089https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089
- www.openwall.com[oss-security] 20091125 CVE request: kernel: KVM: x86 emulator: limit instructions to 15 byteshttp://www.openwall.com/lists/oss-security/2009/11/25/3
- www.redhat.comFEDORA-2009-13098https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88
- www.securityfocus.com37130http://www.securityfocus.com/bid/37130
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=541160