Updated python3.4 packages has been released for Debian GNU/Linux 8 LTS
Package : python3.4Python3.4 Security Update for Debian 8 LTS
Version : 3.4.2-1+deb8u6
CVE ID : CVE-2018-20852
A vulnerability has been discovered in Python, an interactive high-level
object-oriented language, that is relevant for cookie handling.
By using a malicious server an attacker might steal cookies that are
meant for other domains
For Debian 8 "Jessie", this problem has been fixed in version
3.4.2-1+deb8u6.
We recommend that you upgrade your python3.4 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