Debian strongSwan Critical Denial of Service Remote Exec DSA-6330-1

Upstream lists several mitigations:
- - Servers that don't use EAP or XAuth authentication are not vulnerable to
remote attacks.
- - Servers that use EAP authentication but delegate it to a RADIUS server and
don't request an EAP-Identity themselves are not vulnerable either. However,
note that the `eap-radius` plugin parses `Class` and `Filter-Id` attributes
as group identities if enabled, in which case a rogue RADIUS server is able
to trigger the issue.
- - Servers that use IKEv1 with XAuth are not vulnerable unless they use the
`xauth-eap` plugin.

For the oldstable distribution (bookworm), this problem has been fixed
in version 5.9.8-5+deb12u5.

For the stable distribution (trixie), this problem has been fixed in
version 6.0.1-6+deb13u6.

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 Security Advisor...