USN-4228-1: Linux kernel vulnerabilities

linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 16.04 LTS

Summary

Several security issues were fixed in the Linux kernel.

Software Description

linux – Linux kernel
linux-aws – Linux kernel for Amazon Web Services (AWS) systems
linux-kvm – Linux kernel for cloud environments
linux-raspi2 – Linux kernel for Raspberry Pi 2
linux-snapdragon – Linux kernel for Snapdragon processors

Details

It was discovered that a heap-based buffer overflow existed in the Marvell
WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2019-14895, CVE-2019-14901)

It was discovered that a heap-based buffer overflow existed in the Marvell
Libertas WLAN Driver for the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2019-14896, CVE-2019-14897)

Anthony Steinhauser discovered that the Linux kernel did not properly
perform Spectre_RSB mitigations to all processors for PowerPC architecture
systems in some situations. A local attacker could use this to expose
sensitive information. (CVE-2019-18660)

It was discovered that Geschwister Schneider USB CAN interface driver in
the Linux kernel did not properly deallocate memory in certain failure
conditions. A physically proximate attacker could use this to cause a
denial of service (kernel memory exhaustion). (CVE-2019-19052)

It was discovered that the driver for memoryless force-feedback input
devices in the Linux kernel contained a use-after-free vulnerability. A
physically proximate attacker could possibly use this to cause a denial of
service (system crash) or execute arbitrary code. (CVE-2019-19524)

It was discovered that the PEAK-System Technik USB driver in the Linux
kernel did not properly sanitize memory before sending it to the device. A
physically proximate attacker could use this to expose sensitive
information (kernel memory). (CVE-2019-19534)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04 LTS: linux-image-4.4.0-1064-kvm – 4.4.0-1064.71; linux-image-4.4.0-1100-aws – 4.4.0-1100.111; linux-image-4.4.0-1127-raspi2 – 4.4.0-1127.136; linux-image-4.4.0-1131-snapdragon – 4.4.0-1131.139; linux-image-4.4.0-171-generic – 4.4.0-171.200; linux-image-4.4.0-171-generic-lpae – 4.4.0-171.200; linux-image-4.4.0-171-lowlatency – 4.4.0-171.200; linux-image-4.4.0-171-powerpc-e500mc – 4.4.0-171.200; linux-image-4.4.0-171-powerpc-smp – 4.4.0-171.200; linux-image-4.4.0-171-powerpc64-emb – 4.4.0-171.200; linux-image-4.4.0-171-powerpc64-smp – 4.4.0-171.200; linux-image-aws – 4.4.0.1100.104; linux-image-generic – 4.4.0.171.179; linux-image-generic-lpae – 4.4.0.171.179; linux-image-kvm – 4.4.0.1064.64; linux-image-lowlatency – 4.4.0.171.179; linux-image-powerpc-e500mc – 4.4.0.171.179; linux-image-powerpc-smp – 4.4.0.171.179; linux-image-powerpc64-emb – 4.4.0.171.179; linux-image-powerpc64-smp – 4.4.0.171.179; linux-image-raspi2 – 4.4.0.1127.127; linux-image-snapdragon – 4.4.0.1131.123; linux-image-virtual – 4.4.0.171.179

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

Source: USN-4228-1: Linux kernel vulnerabilities

지락문화예술공작단