A lib3mf security update has been released for Debian GNU/Linux 10 to address an use-after-free which could result in the execution of arbitrary code if a malformed file is opened.

DSA 4887-1: lib3mf security update

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Debian Security Advisory DSA-4887-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
April 08, 2021   https://www.debian.org/security/faq
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Package : lib3mf
CVE ID : CVE-2021-21772
Debian Bug : 985092

A use-after-free was discovered in Lib3MF, a C++ implementation of the
3D Manufacturing Format, which could result in the execution of
arbitrary code if a malformed file is opened.

For the stable distribution (buster), this problem has been fixed in
version 1.8.1+ds-3+deb10u1.

We recommend that you upgrade your lib3mf packages.

For the detailed security status of lib3mf please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/lib3mf

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