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Oracle Linux: CVE-2019-7222: ELSA-2019-4612: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2019-7222: ELSA-2019-4612: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity
1
CVSS
(AV:L/AC:H/Au:S/C:P/I:N/A:N)
Published
02/07/2019
Created
08/15/2019
Added
08/15/2019
Modified
01/07/2025

Description

The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak. An information leakage issue was found in the way Linux kernel's KVM hypervisor handled page fault exceptions while emulating instructions like VMXON, VMCLEAR, VMPTRLD, and VMWRITE with memory address as an operand. It occurs if the operand is a mmio address, as the returned exception object holds uninitialized stack memory contents. A guest user/process could use this flaw to leak host's stack memory contents to a guest.

Solution(s)

  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek

References

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