USN-3189-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-3189-1

3rd February, 2017

linux, 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 kernel.

Software description

• linux
  - Linux kernel
  
  





• linux-raspi2
  - Linux kernel for Raspberry Pi 2
  
  





• linux-snapdragon
  - Linux kernel for Snapdragon Processors
  
  

Details

Mikulas Patocka discovered that the asynchronous multibuffer cryptographic
daemon (mcryptd) in the Linux kernel did not properly handle being invoked
with incompatible algorithms. A local attacker could use this to cause a
denial of service (system crash). ()

Update instructions

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

Ubuntu 16.04 LTS:

linux-image-powerpc-smp 4.4.0.62.65

linux-image-powerpc-e500mc 4.4.0.62.65

linux-image-generic 4.4.0.62.65

linux-image-lowlatency 4.4.0.62.65

linux-image-powerpc64-smp 4.4.0.62.65

linux-image-generic-lpae 4.4.0.62.65

linux-image-snapdragon 4.4.0.1046.38

linux-image-powerpc64-emb 4.4.0.62.65

linux-image-raspi2 4.4.0.1042.41

To update your system, please follow these instructions:
,

CVE-2016-8399