Debian 9: DLA-2612-1 Critical: Leptonlib Buffer Over-Read Problem

Several issues have been found by ClusterFuzz in leptonlib, an image
processing library.

All issues are related to heap-based buffer over-read in several functions
or a denial of service (application crash) with crafted data.


For Debian 9 stretch, these problems have been fixed in version
1.74.1-1+deb9u1.

We recommend that you upgrade your leptonlib packages.

For the detailed security status of leptonlib please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/leptonlib

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