A libetpan security update has been released for Debian GNU/Linux 10.

DLA 3261-1: libetpan security update

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Debian LTS Advisory DLA-3261-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
January 05, 2023   https://wiki.debian.org/LTS
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Package : libetpan
Version : 1.9.3-2+deb10u2
CVE ID : CVE-2022-4121
Debian Bug : 1025120

It was discovered that there was a potential null pointer dereference
vulnerability in libetpan, an low-level library for handling email.

For Debian 10 buster, this problem has been fixed in version
1.9.3-2+deb10u2.

We recommend that you upgrade your libetpan packages.

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

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