An OpenEXR security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, and 20.04 LTS.

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Ubuntu Security Notice USN-4676-1
January 05, 2021

openexr vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in OpenEXR.

Software Description:
- openexr: tools for the OpenEXR image format

Details:

It was discovered that OpenEXR incorrectly handled certain malformed EXR
image files. If a user were tricked into opening a crafted EXR image file,
a remote attacker could cause a denial of service, or possibly execute
arbitrary code.

Update instructions:

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

Ubuntu 20.04 LTS:
libopenexr24 2.3.0-6ubuntu0.3
openexr 2.3.0-6ubuntu0.3

Ubuntu 18.04 LTS:
libopenexr22 2.2.0-11.1ubuntu1.4
openexr 2.2.0-11.1ubuntu1.4

Ubuntu 16.04 LTS:
libopenexr22 2.2.0-10ubuntu2.4
openexr 2.2.0-10ubuntu2.4

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

References:
  https://usn.ubuntu.com/4676-1
CVE-2020-16587, CVE-2020-16588, CVE-2020-16589

Package Information:
  https://launchpad.net/ubuntu/+source/openexr/2.3.0-6ubuntu0.3
  https://launchpad.net/ubuntu/+source/openexr/2.2.0-11.1ubuntu1.4
  https://launchpad.net/ubuntu/+source/openexr/2.2.0-10ubuntu2.4