A ExifTool security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, 20.10, and 21.04.

USN-4987-1: ExifTool vulnerability

=========================================================================
Ubuntu Security Notice USN-4987-1
June 10, 2021

libimage-exiftool-perl vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

libimage-exiftool-perl could be made to crash if it opened a specially crafted
file.

Software Description:
- libimage-exiftool-perl: library and program to read and write meta information in multime

Details:

It was discovered that ExifTool did not properly sanitize user data for the
DjVu file format. An attacker could use this vulnerability to cause a DoS or
possibly execute arbitrary code.

Update instructions:

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

Ubuntu 21.04:
libimage-exiftool-perl 12.16+dfsg-1ubuntu0.1

Ubuntu 20.10:
libimage-exiftool-perl 12.05-1ubuntu0.1

Ubuntu 20.04 LTS:
libimage-exiftool-perl 11.88-1ubuntu0.1

Ubuntu 18.04 LTS:
libimage-exiftool-perl 10.80-1ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-4987-1
CVE-2021-22204

Package Information:
  https://launchpad.net/ubuntu/+source/libimage-exiftool-perl/12.16+dfsg-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libimage-exiftool-perl/12.05-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libimage-exiftool-perl/11.88-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libimage-exiftool-perl/10.80-1ubuntu0.1