USN-4364-1: Linux kernel vulnerabilities

linux, linux-aws, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities

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

• Ubuntu 16.04 LTS


• Ubuntu 14.04 ESM

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-raspi2 - Linux kernel for Raspberry Pi (V7) systems


• linux-snapdragon - Linux kernel for Qualcomm Snapdragon processors


• linux-lts-xenial - Linux hardware enablement kernel from Xenial for Trusty

Details

It was discovered that the ADIS16400 IIO IMU Driver for the Linux kernel
did not properly deallocate memory in certain error conditions. A local
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2019-19060)

It was discovered that the vhost net driver in the Linux kernel contained a
stack buffer overflow. A local attacker with the ability to perform ioctl()
calls on /dev/vhost-net could use this to cause a denial of service (system
crash). (CVE-2020-10942)

It was discovered that the Serial CAN interface driver in the Linux kernel
did not properly initialize data. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-11494)

It was discovered that the linux kernel did not properly validate certain
mount options to the tmpfs virtual memory file system. A local attacker
with the ability to specify mount options could use this to cause a denial
of service (system crash). (CVE-2020-11565)

It was discovered that the OV51x USB Camera device driver in the Linux
kernel did not properly validate device metadata. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2020-11608)

It was discovered that the STV06XX USB Camera device driver in the Linux
kernel did not properly validate device metadata. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2020-11609)

It was discovered that the Xirlink C-It USB Camera device driver in the
Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2020-11668)

Update instructions

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

Ubuntu 16.04 LTS

linux-image-aws - 4.4.0.1107.111

linux-image-generic - 4.4.0.179.187

linux-image-generic-lpae - 4.4.0.179.187

linux-image-lowlatency - 4.4.0.179.187

linux-image-powerpc-e500mc - 4.4.0.179.187

linux-image-powerpc-smp - 4.4.0.179.187

linux-image-powerpc64-emb - 4.4.0.179.187

linux-image-powerpc64-smp - 4.4.0.179.187

linux-image-raspi2 - 4.4.0.1133.133

linux-image-snapdragon - 4.4.0.1137.129

linux-image-virtual - 4.4.0.179.187

Ubuntu 14.04 ESM

linux-image-4.4.0-1067-aws - 4.4.0-1067.71

linux-image-4.4.0-179-generic - 4.4.0-179.209~14.04.1+signed1

linux-image-4.4.0-179-generic-lpae - 4.4.0-179.209~14.04.1

linux-image-4.4.0-179-lowlatency - 4.4.0-179.209~14.04.1+signed1

linux-image-4.4.0-179-powerpc-e500mc - 4.4.0-179.209~14.04.1

linux-image-4.4.0-179-powerpc-smp - 4.4.0-179.209~14.04.1

linux-image-4.4.0-179-powerpc64-emb - 4.4.0-179.209~14.04.1

linux-image-4.4.0-179-powerpc64-smp - 4.4.0-179.209~14.04.1

linux-image-aws - 4.4.0.1067.68

linux-image-generic-lpae-lts-xenial - 4.4.0.179.158

linux-image-generic-lts-xenial - 4.4.0.179.158

linux-image-lowlatency-lts-xenial - 4.4.0.179.158

linux-image-powerpc-e500mc-lts-xenial - 4.4.0.179.158

linux-image-powerpc-smp-lts-xenial - 4.4.0.179.158

linux-image-powerpc64-emb-lts-xenial - 4.4.0.179.158

linux-image-powerpc64-smp-lts-xenial - 4.4.0.179.158

linux-image-virtual-lts-xenial - 4.4.0.179.158

To update your system, please follow these instructions: