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AUSCERT External Security Bulletin Redistribution
USN-5084-1: LibTIFF vulnerability
22 September 2021
AusCERT Security Bulletin Summary
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
CVE Names: CVE-2020-19143
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running LibTIFF check for an updated version of the software for
their operating system.
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USN-5084-1: LibTIFF vulnerability
21 September 2021
LibTIFF could be made to crash or run programs if it opened a specially
o Ubuntu 20.04 LTS
o 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 package
o libtiff5 - 4.1.0+git191117-2ubuntu0.20.04.2
o libtiff-tools - 4.1.0+git191117-2ubuntu0.20.04.2
In general, a standard system update will make all the necessary changes.
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