==========================================================================
Ubuntu Security Notice USN-6512-1
November 23, 2023

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

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

- 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:

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 run into an infinite loop.
If a user or an automated system were tricked into opening a specially
crafted image file, an attacker could possibly use this issue to cause a
denial of service. (CVE-2022-40090)

It was discovered that LibTIFF could be made leak memory. If a user or an
automated system were tricked into opening a specially crafted image file,
an attacker could possibly use this issue to cause a denial of service.
(CVE-2023-3576)

Update instructions:

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

Ubuntu 22.04 LTS:
   libtiff-tools                   4.3.0-6ubuntu0.7
   libtiff5                        4.3.0-6ubuntu0.7

Ubuntu 20.04 LTS:
   libtiff-tools 4.1.0+git191117-2ubuntu0.20.04.11
   libtiff5 4.1.0+git191117-2ubuntu0.20.04.11

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libtiff-tools                   4.0.9-5ubuntu0.10+esm4
   libtiff5                        4.0.9-5ubuntu0.10+esm4

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libtiff-tools                   4.0.6-1ubuntu0.8+esm14
   libtiff5                        4.0.6-1ubuntu0.8+esm14

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   libtiff-tools                   4.0.3-7ubuntu0.11+esm11
   libtiff5                        4.0.3-7ubuntu0.11+esm11

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

References:
   https://ubuntu.com/security/notices/USN-6512-1
   CVE-2022-40090, CVE-2023-3576

Package Information:
   https://launchpad.net/ubuntu/+source/tiff/4.3.0-6ubuntu0.7
https://launchpad.net/ubuntu/+source/tiff/4.1.0+git191117-2ubuntu0.20.04.11