Access Restriction Bypass Affecting kernel-bootwrapper package, versions <0:2.6.32-220.7.1.el6


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.14% (50th percentile)

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  • Snyk IDSNYK-CENTOS6-KERNELBOOTWRAPPER-2055254
  • published26 Jul 2021
  • disclosed20 Nov 2011

Introduced: 20 Nov 2011

CVE-2011-4347  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Centos:6 kernel-bootwrapper to version 0:2.6.32-220.7.1.el6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

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.

CVSS Scores

version 3.1