Home / mailings [SECURITY] [DSA 2665-1] strongswan security update
Posted on 30 April 2013
Debian Security Advisory-----BEGIN PGP SIGNED MESSAGE-----
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Debian Security Advisory DSA-2665-1 security@debian.org
http://www.debian.org/security/ Yves-Alexis Perez
April 30, 2013 http://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: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
