Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malicious image
https://www.debian.org/security/2021/dsa-4910
https://lists.debian.org/debian-lts-announce/2021/05/msg00018.html
https://hackerone.com/reports/1154542
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json
http://www.openwall.com/lists/oss-security/2021/05/10/5
http://www.openwall.com/lists/oss-security/2021/05/09/1
http://packetstormsecurity.com/files/167038/ExifTool-12.23-Arbitrary-Code-Execution.html
http://packetstormsecurity.com/files/164994/GitLab-13.10.2-Remote-Code-Execution.html
http://packetstormsecurity.com/files/162558/ExifTool-DjVu-ANT-Perl-Injection.html