Debian: DSA-2665-1: strongswan security update

    Date 30 Apr 2013
    121
    Posted By LinuxSecurity Advisories
    Kevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec based VPN solution. When using the openssl plugin for ECDSA based authentication, an empty, zeroed
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    Debian Security Advisory DSA-2665-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                         Yves-Alexis Perez
    April 30, 2013                         https://www.debian.org/security/faq
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    Package        : strongswan
    Vulnerability  : authentication bypass
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2013-2944
    
    Kevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec based VPN
    solution.
    
    When using the openssl plugin for ECDSA based authentication, an empty, zeroed
    or otherwise invalid signature is handled as a legitimate one. An attacker
    could use a forged signature to authenticate like a legitimate user and gain
    access to the VPN (and everything protected by this).
    
    While the issue looks like CVE-2012-2388 (RSA signature based authentication
    bypass), it is unrelated.
    
    For the stable distribution (squeeze), this problem has been fixed in
    version 4.4.1-5.3.
    
    For the testing distribution (wheezy), this problem has been fixed in
    version 4.5.2-1.5+deb7u1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 4.6.4-7.
    
    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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