An exim4 security update has been released for Debian GNU/Linux 10 to address a heap-based buffer overflow issue.

DLA 3082-1: exim4 security update

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Debian LTS Advisory DLA-3082-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Sylvain Beucler
August 27, 2022   https://wiki.debian.org/LTS
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Package : exim4
Version : 4.92-8+deb10u7
CVE ID : CVE-2022-37452

It was discovered that in Exim, a mail transport agent, handling an
e-mail can cause a heap-based buffer overflow in some situations. An
attacker can cause a denial-of-service (DoS) and possibly execute
arbitrary code.

For Debian 10 buster, this problem has been fixed in version
4.92-8+deb10u7.

We recommend that you upgrade your exim4 packages.

For the detailed security status of exim4 please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/exim4

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