CVE-2009-3638

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-10-29 · updated 2026-06-16
Weakness: CWE-189

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.

Affected products

Linux kernel: through 2.6.31.3; 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+312)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6a54435560efdab1a08f429a954df4d6c740bddf
http://marc.info/?l=oss-security&m=125628917011048&w=2
http://marc.info/?l=oss-security&m=125632898507373&w=2
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc4
http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
http://www.securityfocus.com/bid/36803
http://www.ubuntu.com/usn/usn-864-1
https://bugzilla.redhat.com/show_bug.cgi?id=530515
https://exchange.xforce.ibmcloud.com/vulnerabilities/53934
https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00190.html
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6a54435560efdab1a08f429a954df4d6c740bddf

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