Package        : tinyproxy
Version        : 1.8.3-3+deb8u1
CVE ID         : CVE-2017-11747
Debian Bug     : 870307 948283


A minor security issue and a severe packaging bug have been fixed in
tinyproxy, a lightweight http proxy daemon.

CVE-2017-11747

  main.c in Tinyproxy created a /var/run/tinyproxy/tinyproxy.pid file
  after dropping privileges to a non-root account, which might have
  allowed local users to kill arbitrary processes by leveraging access
  to this non-root account for tinyproxy.pid modification before a root
  script executed a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.

OTHER

  Furthermore, a severe flaw had been discovered by Tim Duesterhus in
  Debian's init script for tinyproxy. With the tiny.conf configuration
  file having the PidFile option removed, the next run of logrotate (if
  installed) would have changed the owner of the system's base directory
  ("/") to tinyproxy:tinyproxy.


For Debian 8 "Jessie", this problem has been fixed in version
1.8.3-3+deb8u1. These fixes were prepared by Mike Gabriel.

We recommend that you upgrade your tinyproxy 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


Best,
Utkarsh