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://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22204.json