01 Record
CVE-2009-3722
The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register,
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 Description
The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register,
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
- 2.27% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.5% 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
- 2009-10-30 20:05Z17 YR AGO
- Last updated
- 2024-08-07 06:38Z2 YR AGO
- Reserved
- 2009-10-16
- 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
- d0befb4b048bb7f41cca0a09184dd6e89369412e6107d3eb908f166d2d38fcd8
05 Affected products
VendorProductVersionsPlatforms
06 References
- oval.cisecurity.orgoval:org.mitre.oval:def:9892https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9892
- marc.info[oss-security] 20091029 CVE request: kvm: check cpl before emulating debug register accesshttp://marc.info/?l=oss-security&m=125678631403558&w=2
- www.ubuntu.comUSN-864-1http://www.ubuntu.com/usn/usn-864-1
- www.mandriva.comMDVSA-2010:198http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=531660
- www.redhat.comRHSA-2010:0126http://www.redhat.com/support/errata/RHSA-2010-0126.html
- marc.info[oss-security] 20091029 Re: CVE request: kvm: check cpl before emulating debug register accesshttp://marc.info/?l=oss-security&m=125680666827148&w=2
- www.securityfocus.com37221http://www.securityfocus.com/bid/37221
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.1
- git.kernel.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0a79b009525b160081d75cef5dbf45817956acf2