Advisory Published

USN-4031-1: Linux kernel vulnerability

First published: Mon Jun 24 2019(Updated: )

It was discovered that the Linux kernel did not properly separate certain memory mappings when creating new userspace processes on 64-bit Power (ppc64el) systems. A local attacker could use this to access memory contents or cause memory corruption of other processes on the system.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-5.0.0-19-generic<5.0.0-19.20
5.0.0-19.20
=19.04
All of
ubuntu/linux-image-generic<5.0.0.19.20
5.0.0.19.20
=19.04
All of
ubuntu/linux-image-virtual<5.0.0.19.20
5.0.0.19.20
=19.04
All of
ubuntu/linux-image-4.18.0-24-generic<4.18.0-24.25
4.18.0-24.25
=18.10
All of
ubuntu/linux-image-generic<4.18.0.24.25
4.18.0.24.25
=18.10
All of
ubuntu/linux-image-powerpc-e500mc<4.18.0.24.25
4.18.0.24.25
=18.10
All of
ubuntu/linux-image-powerpc-smp<4.18.0.24.25
4.18.0.24.25
=18.10
All of
ubuntu/linux-image-powerpc64-emb<4.18.0.24.25
4.18.0.24.25
=18.10
All of
ubuntu/linux-image-powerpc64-smp<4.18.0.24.25
4.18.0.24.25
=18.10
All of
ubuntu/linux-image-virtual<4.18.0.24.25
4.18.0.24.25
=18.10
All of
ubuntu/linux-image-4.18.0-24-generic<4.18.0-24.25~18.04.1
4.18.0-24.25~18.04.1
=18.04
All of
ubuntu/linux-image-generic-hwe-18.04<4.18.0.24.74
4.18.0.24.74
=18.04
All of
ubuntu/linux-image-virtual-hwe-18.04<4.18.0.24.74
4.18.0.24.74
=18.04

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