The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: libopenexr22 2.2.0-11.1ubuntu1.7 openexr 2.2.0-11.1ubuntu1.7 In general, a standard system update will make all the necessary changes.
https://ubuntu.com/security/notices/USN-4996-1
CVE-2021-20296, CVE-2021-23215, CVE-2021-26260, CVE-2021-3598,
CVE-2021-3605
https://launchpad.net/ubuntu/+source/openexr/2.2.0-11.1ubuntu1.7
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