[SECURITY] [DLA 1644-1] policykit-1 security update

Package : policykit-1
Version : 0.105-15~deb8u4
CVE ID : CVE-2018-19788 CVE-2019-6133

Two vulnerabilities were found in Policykit, a framework for managing
administrative policies and privileges:

CVE-2018-19788

It was discovered that incorrect processing of very high UIDs in
Policykit could result in authentication bypass.

CVE-2019-6133

Jann Horn of Google found that Policykit doesn't properly check
if a process is already authenticated, which can lead to an
authentication reuse by a different user.

For Debian 8 "Jessie", these problems have been fixed in version
0.105-15~deb8u4.

We recommend that you upgrade your policykit-1 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS