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AUSCERT External Security Bulletin Redistribution
USN-4270-1: Exiv2 vulnerability
6 February 2020
AusCERT Security Bulletin Summary
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote with User Interaction
CVE Names: CVE-2019-20421
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running Exiv2 check for an updated version of the software for their
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USN-4270-1: Exiv2 vulnerability
5 February 2020
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Exiv2 could be made to crash if it opened a specially crafted image.
o exiv2 - EXIF/IPTC/XMP metadata manipulation tool
It was discovered that Exiv2 incorrectly handled certain images. An attacker
could possibly use this issue to cause a denial of service.
The problem can be corrected by updating your system to the following package
exiv2 - 0.25-4ubuntu2.2
libexiv2-14 - 0.25-4ubuntu2.2
Ubuntu 18.04 LTS
exiv2 - 0.25-3.1ubuntu0.18.04.5
libexiv2-14 - 0.25-3.1ubuntu0.18.04.5
Ubuntu 16.04 LTS
exiv2 - 0.25-2.1ubuntu16.04.6
libexiv2-14 - 0.25-2.1ubuntu16.04.6
To update your system, please follow these instructions: https://
In general, a standard system update will make all the necessary changes.
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