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Ubuntu: (Multiple Advisories) (CVE-2016-3713): Linux kernel (Xenial HWE) vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2016-3713): Linux kernel (Xenial HWE) vulnerabilities

Severity
6
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:C)
Published
05/16/2016
Created
07/25/2018
Added
05/16/2016
Modified
09/12/2020

Description

The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.

Solution(s)

  • ubuntu-upgrade-linux-image-4-2-0-36-generic
  • ubuntu-upgrade-linux-image-4-2-0-36-generic-lpae
  • ubuntu-upgrade-linux-image-4-2-0-36-lowlatency
  • ubuntu-upgrade-linux-image-4-2-0-36-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-2-0-36-powerpc-smp
  • ubuntu-upgrade-linux-image-4-2-0-36-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-2-0-36-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-4-0-22-generic
  • ubuntu-upgrade-linux-image-4-4-0-22-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-22-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-22-powerpc64-smp

References

  • USN-2975-1
  • USN-2975-2
  • USN-2976-1
  • USN-2977-1
  • USN-2978-1
  • USN-2978-2
  • USN-2978-3
  • USN-2979-1
  • USN-2979-2
  • USN-2979-3
  • USN-2979-4
  • CVE-2016-3713
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