USN-4900-1: OpenEXR vulnerabilities

Releases

• Ubuntu 20.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• 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 20.10

• libopenexr25 - 2.5.3-2ubuntu0.2
• openexr - 2.5.3-2ubuntu0.2

Ubuntu 20.04

• libopenexr24 - 2.3.0-6ubuntu0.5
• openexr - 2.3.0-6ubuntu0.5

Ubuntu 18.04

• libopenexr22 - 2.2.0-11.1ubuntu1.6
• openexr - 2.2.0-11.1ubuntu1.6

Ubuntu 16.04

• libopenexr22 - 2.2.0-10ubuntu2.6
• openexr - 2.2.0-10ubuntu2.6

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

References

• CVE-2021-3476
• CVE-2021-3475
• CVE-2021-3474
• CVE-2021-3477
• CVE-2021-3478
• CVE-2021-3479