==========================================================================
Ubuntu Security Notice USN-6644-1
February 19, 2024

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

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

- Ubuntu 23.10
- 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 incorrectly handled certain files. If
a user were tricked into opening a specially crafted file, an attacker
could possibly use this issue to cause the application to crash, resulting
in a denial of service. (CVE-2023-52356)

It was discovered that LibTIFF incorrectly handled certain image files
with the tiffcp utility. If a user were tricked into opening a specially
crafted image file, an attacker could possibly use this issue to cause
tiffcp to crash, resulting in a denial of service. (CVE-2023-6228)

It was discovered that LibTIFF incorrectly handled certain files. If
a user were tricked into opening a specially crafted file, an attacker
could possibly use this issue to cause the application to consume
resources, resulting in a denial of service. (CVE-2023-6277)

Update instructions:

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

Ubuntu 23.10:
   libtiff-tools                   4.5.1+git230720-1ubuntu1.1
   libtiff6                        4.5.1+git230720-1ubuntu1.1

Ubuntu 20.04 LTS:
   libtiff-tools                   4.1.0+git191117-2ubuntu0.20.04.12
   libtiff5                        4.1.0+git191117-2ubuntu0.20.04.12

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libtiff-tools                   4.0.9-5ubuntu0.10+esm5
   libtiff5                        4.0.9-5ubuntu0.10+esm5

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libtiff-tools                   4.0.6-1ubuntu0.8+esm15
   libtiff5                        4.0.6-1ubuntu0.8+esm15

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   libtiff-tools                   4.0.3-7ubuntu0.11+esm12
   libtiff5                        4.0.3-7ubuntu0.11+esm12

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

References:
   https://ubuntu.com/security/notices/USN-6644-1
   CVE-2023-52356, CVE-2023-6228, CVE-2023-6277

Package Information:
   https://launchpad.net/ubuntu/+source/tiff/4.5.1+git230720-1ubuntu1.1
   https://launchpad.net/ubuntu/+source/tiff/4.1.0+git191117-2ubuntu0.20.04.12