CVE-2011-4347

high

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.

References

https://github.com/torvalds/linux/commit/c4e7f9022e506c6635a5037713c37118e23193e4

https://bugzilla.redhat.com/show_bug.cgi?id=756084

http://www.openwall.com/lists/oss-security/2011/11/24/7

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.10

Details

Source: Mitre, NVD

Published: 2013-06-08

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High