Multiple security issues were found in the OpenEXR image library, which could result in denial of service and potentially the execution of arbitrary code when processing malformed EXR image files.
For the stable distribution (buster), these problems have been fixed in version 2.2.1-4.1+deb10u1.
We recommend that you upgrade your openexr packages.
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/