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Debian: 2903-1: strongswan: Summary Print E-mail
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Posted by Benjamin D. Thomas   
Debian Security Report Summary
- -------------------------------------------------------------------------
Debian Security Advisory DSA-2903-1                                  Yves-Alexis Perez
April 14, 2014               
- -------------------------------------------------------------------------

Package        : strongswan
CVE ID         : CVE-2014-2338

An authentication bypass vulnerability was found in charon, the daemon
handling IKEv2 in strongSwan, an IKE/IPsec suite. The state machine
handling the security association (IKE_SA) handled some state transitions

An attacker can trigger the vulnerability by rekeying an unestablished
IKE_SA during the initiation itself. This will trick the IKE_SA state to
'established' without the need to provide any valid credential.

Vulnerable setups include those actively initiating IKEv2 IKE_SA (like
”clients” or “roadwarriors”) but also during re-authentication (which
can be initiated by the responder). Installations using IKEv1 (pluto
daemon in strongSwan 4 and earlier, and IKEv1 code in charon 5.x) is not

For the oldstable distribution (squeeze), this problem has been fixed in
version 4.4.1-5.5.

For the stable distribution (wheezy), this problem has been fixed in
version 4.5.2-1.5+deb7u3.

For the unstable distribution (sid), this problem has been fixed in
version 5.1.2-4.

We recommend that you upgrade your strongswan packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at:

Mailing list:

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