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    Debian: DSA-2903-1: strongswan security update

    Date 14 Apr 2014
    141
    Posted By LinuxSecurity Advisories
    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 incorrectly.
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    Debian Security Advisory DSA-2903-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                         Yves-Alexis Perez
    April 14, 2014                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    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
    incorrectly.
    
    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
    affected.
    
    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: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
    
    
    
    

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