Several flaws were found in tiffcrop, a program distributed by tiff, a library and tools providing support for the Tag Image File Format (TIFF). A specially crafted tiff file can lead to an out-of-bounds write or read resulting in a denial of service.
For Debian 10 buster, these problems have been fixed in version 4.1.0+git191117-2~deb10u7.
We recommend that you upgrade your tiff packages.
For the detailed security status of tiff please refer to its security tracker page at: https://security-tracker.debian.org/tracker/tiff
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