==========================================================================
Ubuntu Security Notice USN-5923-1
March 06, 2023

tiff vulnerabilities
==========================================================================

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

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in LibTIFF.

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 tool. 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. (CVE-2023-0795, CVE-2023-0796, CVE-2023-0797,
CVE-2023-0798, CVE-2023-0799)

It was discovered that LibTIFF could be made to write out of bounds when
processing certain malformed image files with the tiffcrop tool. 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, or possibly execute arbitrary code. (CVE-2023-0800,
CVE-2023-0801, CVE-2023-0802, CVE-2023-0803, CVE-2023-0804)

Update instructions:

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

Ubuntu 22.10:
   libtiff-tools                   4.4.0-4ubuntu3.3
   libtiff5                        4.4.0-4ubuntu3.3

Ubuntu 22.04 LTS:
   libtiff-tools                   4.3.0-6ubuntu0.4
   libtiff5                        4.3.0-6ubuntu0.4

Ubuntu 20.04 LTS:
   libtiff-tools                   4.1.0+git191117-2ubuntu0.20.04.8
   libtiff5                        4.1.0+git191117-2ubuntu0.20.04.8

Ubuntu 18.04 LTS:
   libtiff-tools                   4.0.9-5ubuntu0.10
   libtiff5                        4.0.9-5ubuntu0.10

Ubuntu 16.04 ESM:
   libtiff-tools                   4.0.6-1ubuntu0.8+esm10
   libtiff5                        4.0.6-1ubuntu0.8+esm10

Ubuntu 14.04 ESM:
   libtiff-tools                   4.0.3-7ubuntu0.11+esm7
   libtiff5                        4.0.3-7ubuntu0.11+esm7

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

References:
   https://ubuntu.com/security/notices/USN-5923-1
   CVE-2023-0795, CVE-2023-0796, CVE-2023-0797, CVE-2023-0798,
   CVE-2023-0799, CVE-2023-0800, CVE-2023-0801, CVE-2023-0802,
   CVE-2023-0803, CVE-2023-0804

Package Information:
   https://launchpad.net/ubuntu/+source/tiff/4.4.0-4ubuntu3.3
   https://launchpad.net/ubuntu/+source/tiff/4.3.0-6ubuntu0.4
https://launchpad.net/ubuntu/+source/tiff/4.1.0+git191117-2ubuntu0.20.04.8
   https://launchpad.net/ubuntu/+source/tiff/4.0.9-5ubuntu0.10