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CVE-2009-3638

7.2 · HIGH

Integer overflow in the kvm_dev_ioctl_get_supported_cpuid function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.31.4 allows local users to have an unspecified impact vi…

Published Oct 29, 2009linuxCWE-189EPSS 0.51%

Overview

CVE-2009-3638 is a high-severity vulnerability affecting linux linux_kernel. It was published on October 29, 2009 and has a CVSS 2.0 base score of 7.2 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Integer overflow in the kvm_dev_ioctl_get_supported_cpuid function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.31.4 allows local users to have an unspecified impact via a KVM_GET_SUPPORTED_CPUID request to the kvm_arch_dev_ioctl function.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_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

VendorProductVersionsStatus
linuxlinux_kernel0Affected

References

Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6a54435560efdab1a08f429a954df4d6c740bddfRefmarc.info/?l=oss-security&m=125628917011048&w=2Refmarc.info/?l=oss-security&m=125632898507373&w=2Refwww.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4Refwww.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc4Refwww.mandriva.com/security/advisories?name=MDVSA-2009:329Refwww.securityfocus.com/bid/36803Refwww.ubuntu.com/usn/usn-864-1Refbugzilla.redhat.com/show_bug.cgi?id=530515Refexchange.xforce.ibmcloud.com/vulnerabilities/53934

How CyberStrike helps

Frequently asked questions

What is CVE-2009-3638?

CVE-2009-3638 is a high-severity vulnerability affecting linux linux_kernel. It was published on October 29, 2009 and has a CVSS 2.0 base score of 7.2 (HIGH).

How severe is CVE-2009-3638?

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-3638?

Check the references section for vendor advisories and patches from linux. Update linux_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-2009-3638?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-3638 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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