@MSGID: 1:261/20 03105549
@TID: PX/Win v10.0b40 PX28-1176M
@TZUTC: -0400
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- -------------------------------------------------------------------------
Debian Security Advisory DSA-6330-1                   security@debian.org
https://www.debian.org/security/                        Yves-Alexis Perez
June 08, 2026                         https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : strongswan
CVE ID         : CVE-2026-47895
Debian Bug     : 

Elliott Childre identified a vulnerability in strongSwan, an IKE/IPsec suite.
The bug happens when cloning certain identities and can lead to a double-free,
a daemon crash (leading to denial of service) and potentially remote code
execution.

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 Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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