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). (CVE-2016-10147)
Qidan He discovered that the ICMP implementation in the Linux kernel did
not properly check the size of an ICMP header. A local attacker with
CAP_NET_ADMIN could use this to expose sensitive information.
(CVE-2016-8399)
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-4.4.0-1042-raspi2
4.4.0-1042.49
-
linux-image-4.4.0-62-powerpc-e500mc
4.4.0-62.83
-
linux-image-4.4.0-62-lowlatency
4.4.0-62.83
- linux-image-generic 4.4.0.62.65
-
linux-image-4.4.0-62-powerpc-smp
4.4.0-62.83
-
linux-image-4.4.0-62-powerpc64-smp
4.4.0-62.83
- linux-image-lowlatency 4.4.0.62.65
-
linux-image-4.4.0-1046-snapdragon
4.4.0-1046.50
-
linux-image-4.4.0-62-powerpc64-emb
4.4.0-62.83
- 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-4.4.0-62-generic
4.4.0-62.83
-
linux-image-4.4.0-62-generic-lpae
4.4.0-62.83
- 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:
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.