==========================================================================
Ubuntu Security Notice USN-5421-1
May 16, 2022

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

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

- Ubuntu 21.10
- 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 incorrectly handled certain images.
An attacker could possibly use this issue to cause a crash,
resulting in a denial of service. This issue only affects
Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2020-35522)

Chintan Shah discovered that LibTIFF incorrectly handled memory when
handling certain images. An attacker could possibly use this issue to
cause a crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2022-0561, CVE-2022-0562, CVE-2022-0891)

It was discovered that LibTIFF incorrectly handled certain images.
An attacker could possibly use this issue to cause a crash,
resulting in a denial of service. This issue only affects
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2022-0865)

Update instructions:

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

Ubuntu 21.10:
   libtiff-tools                   4.3.0-1ubuntu0.1
   libtiff5                        4.3.0-1ubuntu0.1

Ubuntu 20.04 LTS:
   libtiff-tools                   4.1.0+git191117-2ubuntu0.20.04.3
   libtiff5                        4.1.0+git191117-2ubuntu0.20.04.3

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

Ubuntu 16.04 ESM:
   libtiff-tools                   4.0.6-1ubuntu0.8+esm1
   libtiff5                        4.0.6-1ubuntu0.8+esm1

Ubuntu 14.04 ESM:
   libtiff-tools                   4.0.3-7ubuntu0.11+esm1
   libtiff5                        4.0.3-7ubuntu0.11+esm1

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

References:
   https://ubuntu.com/security/notices/USN-5421-1
   CVE-2020-35522, CVE-2022-0561, CVE-2022-0562, CVE-2022-0865,
   CVE-2022-0891

Package Information:
   https://launchpad.net/ubuntu/+source/tiff/4.3.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/tiff/4.1.0+git191117-2ubuntu0.20.04.3
   https://launchpad.net/ubuntu/+source/tiff/4.0.9-5ubuntu0.5