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Ubuntu: (Multiple Advisories) (CVE-2017-12188): Linux kernel (Azure) vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2017-12188): Linux kernel (Azure) vulnerability

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
10/11/2017
Created
07/25/2018
Added
11/21/2017
Modified
08/25/2021

Description

arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."

Solution(s)

  • ubuntu-upgrade-linux-image-4-10-0-1009-gcp
  • ubuntu-upgrade-linux-image-4-10-0-1021-raspi2
  • ubuntu-upgrade-linux-image-4-10-0-40-generic
  • ubuntu-upgrade-linux-image-4-10-0-40-generic-lpae
  • ubuntu-upgrade-linux-image-4-10-0-40-lowlatency
  • ubuntu-upgrade-linux-image-4-11-0-1015-azure
  • ubuntu-upgrade-linux-image-4-13-0-1006-raspi2
  • ubuntu-upgrade-linux-image-4-13-0-17-generic
  • ubuntu-upgrade-linux-image-4-13-0-17-generic-lpae
  • ubuntu-upgrade-linux-image-4-13-0-17-lowlatency
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-raspi2

References

  • USN-3484-1
  • USN-3484-2
  • USN-3484-3
  • USN-3487-1
  • USN-3488-1
  • 101267
  • RHSA-2018:0395
  • RHSA-2018:0412
  • CVE-2017-12188
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