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Oracle Linux: (CVE-2017-12188) ELSA-2018-0395: kernel security and bug fix update

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Oracle Linux: (CVE-2017-12188) ELSA-2018-0395: kernel security and bug fix update

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
10/11/2017
Created
07/25/2018
Added
03/09/2018
Modified
08/11/2023

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)

  • oracle-linux-upgrade-kernel

References

  • ELSA-2018-0395
  • CVE-2017-12188
  • USN-3484-1
  • USN-3484-2
  • USN-3484-3
  • USN-3487-1
  • USN-3488-1
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