An OpenEXR security update has been released for Ubuntu Linux 20.04 LTS, 19.10, 18.04 LTS, and 16.04 LTS.

USN-4418-1: OpenEXR vulnerabilities

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Ubuntu Security Notice USN-4418-1
July 06, 2020

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

- Ubuntu 20.04 LTS
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

OpenEXR could be made to crash or run programs if it opened a specially
crafted file.

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 2.3.0-6ubuntu0.2
openexr 2.3.0-6ubuntu0.2

Ubuntu 19.10:
libopenexr23 2.2.1-4.1ubuntu1.2
openexr 2.2.1-4.1ubuntu1.2

Ubuntu 18.04 LTS:
libopenexr22 2.2.0-11.1ubuntu1.3
openexr 2.2.0-11.1ubuntu1.3

Ubuntu 16.04 LTS:
libopenexr22 2.2.0-10ubuntu2.3
openexr 2.2.0-10ubuntu2.3

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

References:
  https://usn.ubuntu.com/4418-1
CVE-2020-15305, CVE-2020-15306

Package Information:
  https://launchpad.net/ubuntu/+source/openexr/2.3.0-6ubuntu0.2
  https://launchpad.net/ubuntu/+source/openexr/2.2.1-4.1ubuntu1.2
  https://launchpad.net/ubuntu/+source/openexr/2.2.0-11.1ubuntu1.3
  https://launchpad.net/ubuntu/+source/openexr/2.2.0-10ubuntu2.3