Debian 9: DLA-2636-1 Moderate: pjproject Denial Of Service Issue

An issue has been found in pjproject, a set of libraries for the PJ
Project.
Due to bad handling of two consecutive crafted answers to an INVITE, the
attacker is able to crash the server resulting in a denial of service.


For Debian 9 stretch, this problem has been fixed in version
2.5.5~dfsg-6+deb9u2.

We recommend that you upgrade your pjproject packages.

For the detailed security status of pjproject please refer to
its security tracker page at:

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