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AUSCERT External Security Bulletin Redistribution
ESB-2021.3160
USN-5084-1: LibTIFF vulnerability
22 September 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: LibTIFF
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-19143
Original Bulletin:
https://ubuntu.com/security/notices/USN-5084-1
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
crafted file.
Releases
o Ubuntu 20.04 LTS
Packages
o tiff - Tag Image File Format (TIFF) library
Details
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.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
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.
References
o CVE-2020-19143
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