A strongswan security update has been released for Debian GNU/Linux 10 to address a potential denial of service.

DLA 3143-1: strongswan security update

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Debian LTS Advisory DLA-3143-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
October 10, 2022   https://wiki.debian.org/LTS
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Package : strongswan
Version : 5.7.2-1+deb10u3
CVE ID : CVE-2022-40617
Debian Bug : #1021271

It was discovered that there was a potential denial of service
vulnerability in strongswan, an IPsec VPN solution.

Strongswan could have queried URLs with untrusted certificates, and
this could potentially lead to a DoS attack by blocking the fetcher
thread.

For Debian 10 buster, this problem has been fixed in version
5.7.2-1+deb10u3.

We recommend that you upgrade your strongswan packages.

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

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