USN-2956-1: ubuntu-core-launcher vulnerability
Ubuntu Security Notice USN-2956-1
29th April, 2016
A security issue affects these releases of Ubuntu and its
- Ubuntu 16.04 LTS
ubuntu-core-launcher did not properly isolate snaps from one another.
– Snap application launcher
Zygmunt Krynicki discovered that ubuntu-core-launcher did not properly
sanitize its input and contained a logic error when determining the
mountpoint of bind mounts when using snaps on traditional Ubuntu systems
(eg, desktop and server). If a user were tricked into installing a
malicious snap with a crafted snap name, an attacker could perform a
delayed attack to steal data or execute code within the security context of
another snap. This issue did not affect Ubuntu Core systems.
The problem can be corrected by updating your system to the following
To update your system, please follow these instructions:
In general, a standard system update will make all the necessary changes.