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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.3945
                     USN-5150-1: OpenEXR vulnerability
                             18 November 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           OpenEXR
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-3941  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5150-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running OpenEXR check for an updated version of the software for 
         their operating system.

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USN-5150-1: OpenEXR vulnerability
17 November 2021

OpenEXR could be made to crash if it opened a specially crafted file.
Releases

  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 ESM

Packages

  o openexr - tools for the OpenEXR image format

Details

It was discovered that OpenEXR incorrectly handled certain EXR image files.
An attacker could possibly use this issue to cause a crash.

Update instructions

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

Ubuntu 18.04

  o openexr - 2.2.0-11.1ubuntu1.9
  o libopenexr22 - 2.2.0-11.1ubuntu1.9

Ubuntu 16.04

  o openexr - 2.2.0-10ubuntu2.6+esm3
    Available with UA Infra or UA Desktop
  o libopenexr22 - 2.2.0-10ubuntu2.6+esm3
    Available with UA Infra or UA Desktop

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

References

  o CVE-2021-3941

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===========================================================================
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The University of Queensland
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