Ubuntu Security Notice USN-3249-1
29th March, 2017
linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
The system could be made to crash or run programs as an administrator.
Software description
It was discovered that the xfrm framework for transforming packets in the
Linux kernel did not properly validate data received from user space. A
local attacker could use this to cause a denial of service (system crash)
or execute arbitrary code with administrative privileges.
Update instructions
The problem can be corrected by updating your system to the following package version:
Ubuntu 16.04 LTS:
linux-image-gke 4.4.0.1009.11
linux-image-powerpc-e500mc 4.4.0.71.77
linux-image-4.4.0-1054-snapdragon 4.4.0-1054.58
linux-image-raspi2 4.4.0.1051.52
linux-image-powerpc-smp 4.4.0.71.77
linux-image-4.4.0-71-lowlatency 4.4.0-71.92
linux-image-generic 4.4.0.71.77
linux-image-4.4.0-71-powerpc-smp 4.4.0-71.92
linux-image-4.4.0-71-powerpc-e500mc 4.4.0-71.92
linux-image-4.4.0-71-generic 4.4.0-71.92
linux-image-4.4.0-71-powerpc64-smp 4.4.0-71.92
linux-image-4.4.0-1051-raspi2 4.4.0-1051.58
linux-image-generic-lpae 4.4.0.71.77
linux-image-snapdragon 4.4.0.1054.47
linux-image-aws 4.4.0.1012.15
linux-image-4.4.0-1012-aws 4.4.0-1012.21
linux-image-4.4.0-71-generic-lpae 4.4.0-71.92
linux-image-lowlatency 4.4.0.71.77
linux-image-4.4.0-1009-gke 4.4.0-1009.9
linux-image-powerpc64-smp 4.4.0.71.77
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
CVE-2017-7184
Continue reading...
29th March, 2017
linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
The system could be made to crash or run programs as an administrator.
Software description
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-gke - Linux kernel for Google Container Engine (GKE) systems
- linux-raspi2 - Linux kernel for Raspberry Pi 2
- linux-snapdragon - Linux kernel for Snapdragon Processors
It was discovered that the xfrm framework for transforming packets in the
Linux kernel did not properly validate data received from user space. A
local attacker could use this to cause a denial of service (system crash)
or execute arbitrary code with administrative privileges.
Update instructions
The problem can be corrected by updating your system to the following package version:
Ubuntu 16.04 LTS:
linux-image-gke 4.4.0.1009.11
linux-image-powerpc-e500mc 4.4.0.71.77
linux-image-4.4.0-1054-snapdragon 4.4.0-1054.58
linux-image-raspi2 4.4.0.1051.52
linux-image-powerpc-smp 4.4.0.71.77
linux-image-4.4.0-71-lowlatency 4.4.0-71.92
linux-image-generic 4.4.0.71.77
linux-image-4.4.0-71-powerpc-smp 4.4.0-71.92
linux-image-4.4.0-71-powerpc-e500mc 4.4.0-71.92
linux-image-4.4.0-71-generic 4.4.0-71.92
linux-image-4.4.0-71-powerpc64-smp 4.4.0-71.92
linux-image-4.4.0-1051-raspi2 4.4.0-1051.58
linux-image-generic-lpae 4.4.0.71.77
linux-image-snapdragon 4.4.0.1054.47
linux-image-aws 4.4.0.1012.15
linux-image-4.4.0-1012-aws 4.4.0-1012.21
linux-image-4.4.0-71-generic-lpae 4.4.0-71.92
linux-image-lowlatency 4.4.0.71.77
linux-image-4.4.0-1009-gke 4.4.0-1009.9
linux-image-powerpc64-smp 4.4.0.71.77
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
CVE-2017-7184
Continue reading...
