An openexr security update has been released for Debian GNU/Linux 9 LTS to address several vulnerabilities.

DLA 2701-1: openexr security update

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Debian LTS Advisory DLA-2701-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Sylvain Beucler
July 03, 2021   https://wiki.debian.org/LTS
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Package : openexr
Version : 2.2.0-11+deb9u3
CVE ID : CVE-2020-16587 CVE-2021-3474 CVE-2021-3475 CVE-2021-3476
CVE-2021-3477 CVE-2021-3478 CVE-2021-3479 CVE-2021-3598
CVE-2021-20296 CVE-2021-23215 CVE-2021-26260
Debian Bug : 986796 990450

Several vulnerabilities were discovered in OpenEXR, a library and
tools for the OpenEXR high dynamic-range (HDR) image format. An
attacker could cause a denial of service (DoS) through application
crash and excessive memory consumption.

For Debian 9 stretch, these problems have been fixed in version
2.2.0-11+deb9u3.

We recommend that you upgrade your openexr packages.

For the detailed security status of openexr please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/openexr

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS