Ubuntu Security Notice USN-5084-1
September 21, 2021
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
LibTIFF could be made to crash or run programs if it opened a specially
– tiff: Tag Image File Format (TIFF) library
It was discovered that LibTIFF incorrectly handled certain malformed
images. If a user or automated system were tricked into opening a specially
crafted image, a remote attacker could crash the application, leading to a
denial of service, or possibly execute arbitrary code with user privileges.
The problem can be corrected by updating your system to the following
Ubuntu 20.04 LTS:
In general, a standard system update will make all the necessary changes.