==========================================================================
Ubuntu Security Notice USN-6428-1
October 11, 2023

tiff vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

LibTIFF could be made to crash if it opened a specially crafted file.

Software Description:
- tiff: Tag Image File Format (TIFF) library

Details:

It was discovered that LibTIFF could be made to read out of bounds when
processing certain malformed image files with the tiffcrop utility. If a
user were tricked into opening a specially crafted image file, an attacker
could possibly use this issue to cause tiffcrop to crash, resulting in a
denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.04:
  libtiff-tools                   4.5.0-5ubuntu1.2
  libtiff6                        4.5.0-5ubuntu1.2

Ubuntu 22.04 LTS:
  libtiff-tools                   4.3.0-6ubuntu0.6
  libtiff5                        4.3.0-6ubuntu0.6

Ubuntu 20.04 LTS:
  libtiff-tools                   4.1.0+git191117-2ubuntu0.20.04.10
  libtiff5                        4.1.0+git191117-2ubuntu0.20.04.10

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  libtiff-tools                   4.0.9-5ubuntu0.10+esm3
  libtiff5                        4.0.9-5ubuntu0.10+esm3

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  libtiff-tools                   4.0.6-1ubuntu0.8+esm13
  libtiff5                        4.0.6-1ubuntu0.8+esm13

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
  libtiff-tools                   4.0.3-7ubuntu0.11+esm10
  libtiff5                        4.0.3-7ubuntu0.11+esm10

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-6428-1
  CVE-2023-1916

Package Information:
  https://launchpad.net/ubuntu/+source/tiff/4.5.0-5ubuntu1.2
  https://launchpad.net/ubuntu/+source/tiff/4.3.0-6ubuntu0.6
  https://launchpad.net/ubuntu/+source/tiff/4.1.0+git191117-2ubuntu0.20.04.10