A strongswan security update has been released for Debian GNU/Linux 10 LTS to address a vulnerability related to processing public Diffie-Hellman key exchange values.

[SECURITY] [DLA 3663-1] strongswan security update

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Debian LTS Advisory DLA-3663-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Chris Lamb
November 24, 2023 https://wiki.debian.org/LTS
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Package : strongswan
Version : 5.7.2-1+deb10u4
CVE ID : CVE-2023-41913

It was discovered that there was a potential buffer overflow in
strongswan, a IPsec-based VPN (Virtual Private Network) server.

A vulnerability related to processing public Diffie-Hellman key
exchange values could have resulted in a buffer overflow and
potentially remote code execution as a result.

For Debian 10 buster, this problem has been fixed in version
5.7.2-1+deb10u4.

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