CVE-2010-0309
6.8 · MEDIUMThe 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 denia…
Overview
CVE-2010-0309 is a medium-severity vulnerability affecting linux kernel. It was published on February 12, 2010 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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 of service (host OS crash or hang) by attempting to read the /dev/port file.
Remediation
Check the references section for vendor advisories and patches from linux. Update kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
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References
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Frequently asked questions
What is CVE-2010-0309?
CVE-2010-0309 is a medium-severity vulnerability affecting linux kernel. It was published on February 12, 2010 and has a CVSS 2.0 base score of 6.8 (MEDIUM).
How severe is CVE-2010-0309?
This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2010-0309?
Check the references section for vendor advisories and patches from linux. Update kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2010-0309?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-0309 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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