USN-3822-1: Linux kernel vulnerabilities
14 November 2018
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Several security issues were fixed in the Linux kernel.
- linux - Linux kernel
Jim Mattson discovered that the KVM implementation in the Linux kernel mismanages the #BP and #OF exceptions. A local attacker in a guest virtual machine could use this to cause a denial of service (guest OS crash). (CVE-2016-9588)
It was discovered that the generic SCSI driver in the Linux kernel did not properly enforce permissions on kernel memory access. A local attacker could use this to expose sensitive information or possibly elevate privileges. (CVE-2017-13168)
Andrey Konovalov discovered that the CDC USB Ethernet driver did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16649)
It was discovered that an integer overflow existed in the CD-ROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-16658)
It was discovered that an integer overflow existed in the HID Bluetooth implementation in the Linux kernel that could lead to a buffer overwrite. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-9363)
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 LTS
- linux-image-3.13.0-162-generic - 3.13.0-162.212
- linux-image-3.13.0-162-generic-lpae - 3.13.0-162.212
- linux-image-3.13.0-162-lowlatency - 3.13.0-162.212
- linux-image-3.13.0-162-powerpc-e500 - 3.13.0-162.212
- linux-image-3.13.0-162-powerpc-e500mc - 3.13.0-162.212
- linux-image-3.13.0-162-powerpc-smp - 3.13.0-162.212
- linux-image-3.13.0-162-powerpc64-emb - 3.13.0-162.212
- linux-image-3.13.0-162-powerpc64-smp - 3.13.0-162.212
- linux-image-generic - 18.104.22.168.172
- linux-image-generic-lpae - 22.214.171.124.172
- linux-image-lowlatency - 126.96.36.199.172
- linux-image-powerpc-e500 - 188.8.131.52.172
- linux-image-powerpc-e500mc - 184.108.40.206.172
- linux-image-powerpc-smp - 220.127.116.11.172
- linux-image-powerpc64-emb - 18.104.22.168.172
- linux-image-powerpc64-smp - 22.214.171.124.172
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.