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CVE-2019-12817

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2019-2703-01
Posted Sep 10, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2703-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, bypass, denial of service, heap overflow, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2018-19824, CVE-2019-11487, CVE-2019-12817, CVE-2019-3846, CVE-2019-3887, CVE-2019-9500, CVE-2019-9503
SHA-256 | 6aacbcf84bb45ef802cdd0185418df3143d468b0ab80ee560822676b92380c24
Debian Security Advisory 4495-1
Posted Aug 12, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4495-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2018-20836, CVE-2019-10207, CVE-2019-10638, CVE-2019-1125, CVE-2019-12817, CVE-2019-12984, CVE-2019-13233, CVE-2019-13631, CVE-2019-13648, CVE-2019-14283, CVE-2019-14284, CVE-2019-1999
SHA-256 | c9cffe5ad30be525cc930f197d8f2f4324ebd95c48fa3bbf6a68ef2df2511752
Ubuntu Security Notice USN-4031-1
Posted Jun 24, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4031-1 - It was discovered that the Linux kernel did not properly separate certain memory mappings when creating new userspace processes on 64-bit Power systems. A local attacker could use this to access memory contents or cause memory corruption of other processes on the system.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2019-12817
SHA-256 | c29a8b0fea956d911595a73c3f67d6fdbc5407536f94826edbbc54f9d5c4a7da
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