A tiff security update has been released for Debian GNU/Linux 9 LTS to address several issues.

DLA 2932-1: tiff security update

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Debian LTS Advisory DLA-2932-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Thorsten Alteholz
March 06, 2022   https://wiki.debian.org/LTS
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Package : tiff
Version : 4.0.8-2+deb9u8
CVE ID : CVE-2022-0561 CVE-2022-0562 CVE-2022-22844
Debian Bug :

Several issues have been found in tiff, a library and tools to manipulate
and convert files in the Tag Image File Format (TIFF).

CVE-2022-22844

out-of-bounds read in _TIFFmemcpy in certain situations involving a
custom tag and 0x0200 as the second word of the DE field.

CVE-2022-0562

Null source pointer passed as an argument to memcpy() function within
TIFFReadDirectory(). This could result in a Denial of Service via
crafted TIFF files.

CVE-2022-0561

Null source pointer passed as an argument to memcpy() function within
TIFFFetchStripThing(). This could result in a Denial of Service via
crafted TIFF files.

For Debian 9 stretch, these problems have been fixed in version
4.0.8-2+deb9u8.

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