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Red Hat: CVE-2019-12817: CVE-2019-12817 kernel: ppc: unrelated processes being able to read/write to each other's virtual memory (Multiple Advisories)

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Red Hat: CVE-2019-12817: CVE-2019-12817 kernel: ppc: unrelated processes being able to read/write to each other's virtual memory (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
06/25/2019
Created
09/12/2019
Added
09/11/2019
Modified
11/27/2024

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)

  • redhat-upgrade-kernel

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