An ieee-data crash fix has been released for Debian GNU/Linux 9 LTS to fix an issue caused by a changed download URL.

BUGFIX: DLA 2703-1: ieee-data crash fix

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Debian LTS Advisory DLA-2703-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Utkarsh Gupta
July 04, 2021   https://wiki.debian.org/LTS
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Package : ieee-data
Version : 20160613.1+deb9u1
Debian Bug : 908623 932711

The ieee-data package, which provides the OUI and IAB listings of
identifiers assigned by IEEE Standards Association, ships a script
(update-ieee-data) which queries ieee.org to download the most recent
dataset and save it to /var/lib/ieee-data/.

This script broke for stretch at the end of 2018 when the URL changed.

For Debian 9 stretch, this problem has been fixed in version
20160613.1+deb9u1.

We recommend that you upgrade your ieee-data packages.

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

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