What’s Vulnerable › Vulnerabilities

CVE-2011-4347

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-06-08 · updated 2026-06-16
• Weakness: CWE-264

Description

The kvm_vm_ioctl_assign_device function in virt/kvm/assigned-dev.c in the KVM subsystem in the Linux kernel before 3.1.10 does not verify permission to access PCI configuration space and BAR resources, which allows host OS users to assign PCI devices and cause a denial of service (host OS crash) via a KVM_ASSIGN_PCI_DEVICE operation.

Affected products

• Linux kernel: through 3.1.9; 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6 (+2)

References

• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.10
• http://www.openwall.com/lists/oss-security/2011/11/24/7
• https://bugzilla.redhat.com/show_bug.cgi?id=756084
• https://github.com/torvalds/linux/commit/c4e7f9022e506c6635a5037713c37118e23193e4
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.10
• http://www.openwall.com/lists/oss-security/2011/11/24/7
• https://bugzilla.redhat.com/show_bug.cgi?id=756084
• https://github.com/torvalds/linux/commit/c4e7f9022e506c6635a5037713c37118e23193e4

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