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Ubuntu: USN-4031-1 (CVE-2019-12817): Linux kernel vulnerability

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Ubuntu: USN-4031-1 (CVE-2019-12817): Linux kernel vulnerability

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
06/24/2019
Created
06/26/2019
Added
06/24/2019
Modified
03/22/2023

Description

arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.

Solution(s)

  • ubuntu-upgrade-linux-image-4-18-0-24-generic
  • ubuntu-upgrade-linux-image-5-0-0-19-generic
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-powerpc-e500mc
  • ubuntu-upgrade-linux-image-powerpc-smp
  • ubuntu-upgrade-linux-image-powerpc64-emb
  • ubuntu-upgrade-linux-image-powerpc64-smp
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04

References

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