01 Record
CVE-2010-0309
The pit_ioport_read function in the Programmable Interval Timer (PIT) emulation in i8254.c in KVM 83 does not properly use the pit_state data structure, which allows guest OS users to cause a denial
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 Description
The pit_ioport_read function in the Programmable Interval Timer (PIT) emulation in i8254.c in KVM 83 does not properly use the pit_state data structure, which allows guest OS users to cause a denial
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
- 2.77% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 86.2% 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
- 2010-02-12 19:00Z16 YR AGO
- Last updated
- 2024-08-07 00:45Z2 YR AGO
- Reserved
- 2010-01-12
- 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
- 8d5264154c34b3bbc9ad224ae3983fd4e60c7e33ac38587f8df772f717305504
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.securityfocus.com38158http://www.securityfocus.com/bid/38158
- www.ubuntu.comUSN-914-1http://www.ubuntu.com/usn/USN-914-1
- www.vupen.comADV-2010-0638http://www.vupen.com/english/advisories/2010/0638
- rhn.redhat.comRHSA-2010:0088https://rhn.redhat.com/errata/RHSA-2010-0088.html
- secunia.com38922http://secunia.com/advisories/38922
- www.openwall.com[oss-security] 20100202 Re: CVE request - kvm: cat /dev/port in the guest can cause host DoShttp://www.openwall.com/lists/oss-security/2010/02/02/4
- www.debian.orgDSA-1996http://www.debian.org/security/2010/dsa-1996
- oval.cisecurity.orgoval:org.mitre.oval:def:11095https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11095
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=560887
- www.openwall.com[oss-security] 20100202 CVE request - kvm: cat /dev/port in the guest can cause host DoShttp://www.openwall.com/lists/oss-security/2010/02/02/1
- www.mail-archive.com[kvm] 20100129 KVM: PIT: control word is write-onlyhttp://www.mail-archive.com/kvm%40vger.kernel.org/msg28002.html
- rhn.redhat.comRHSA-2010:0095https://rhn.redhat.com/errata/RHSA-2010-0095.html
- secunia.com38492http://secunia.com/advisories/38492