strongSwan 4.3.5 through 5.0.3, when using the OpenSSL plugin for ECDSA signature verification, allows remote attackers to authenticate as other users via an invalid signature.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-2944
• http://download.strongswan.org/patches/10_openssl_ecdsa_signature_patch/strongswan-4.3.5-5.0.3_openssl_ecdsa_signature.patch
• http://lists.opensuse.org/opensuse-updates/2013-05/msg00014.html
• http://lists.opensuse.org/opensuse-updates/2013-06/msg00010.html
• http://lists.opensuse.org/opensuse-updates/2013-06/msg00121.html
• http://www.debian.org/security/2013/dsa-2665
• http://www.securityfocus.com/bid/59580
• http://www.strongswan.org/blog/2013/04/30/strongswan-5.0.4-released-(cve-2013-2944).html
• http://www.strongswan.org/blog/2013/04/30/strongswan-5.0.4-released-%28cve-2013-2944%29.html