A security issue affects these releases of Ubuntu and its
derivatives:
Ubuntu 16.10
Ubuntu 16.04 LTS
Summary
Dovecot could be made to crash if it received specially crafted input.
Software description
dovecot
– IMAP and POP3 email server
Details
It was discovered that Dovecot incorrectly handled some usernames. An attacker could possibly use this issue to cause Dovecot to hang or crash, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
Certain network settings in ChromeOS / ChromeBooks persists between
reboots when set in guest mode. These issues have been reported to the
vendor but will not be fixed since the vendor considers them to be WAI
(Working As Intended). These attacks require physical access to…
Proxifier 2.18 (also 2.17 and possibly some earlier version) ships with
a KLoader binary which it installs suid root the first time Proxifier is
run. This binary serves a single purpose which is to load and unload
Proxifier’s kernel extension.
Unfortunately it does this by taking the first parameter passed to it on
the commandline without any sanitisation and feeding it straight into
system().