An alpine security update has been released for Debian GNU/Linux 8 LTS.

DLA 2254-1: alpine security update

Package : alpine
Version : 2.11+dfsg1-3+deb8u1
CVE ID : CVE-2020-14929
Debian Bug : 963179

CVE-2020-14929

Alpine before 2.23 silently proceeds to use an insecure connection
after a /tls is sent in certain circumstances involving PREAUTH, which
is a less secure behavior than the alternative of closing the connection
and letting the user decide what they would like to do.

For Debian 8 "Jessie", this problem has been fixed in version
2.11+dfsg1-3+deb8u1.

We recommend that you upgrade your alpine 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