Multiple stack-based buffer overflows in GNU ZRTPCPP before 3.2.0 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted ZRTP Hello packet to the (1) ZRtp::findBestSASType, (2) ZRtp::findBestAuthLen, (3) ZRtp::findBestCipher, (4) ZRtp::findBestHash, or (5) ZRtp::findBestPubKey functions.
blog.azimuthsecurity.com/2013/06/attacking-crypto-phones-weaknesses-in.html
lists.opensuse.org/opensuse-updates/2013-10/msg00052.html
lists.opensuse.org/opensuse-updates/2013-10/msg00053.html
seclists.org/oss-sec/2013/q2/638
secunia.com/advisories/53818
secunia.com/advisories/54998
security.gentoo.org/glsa/glsa-201309-13.xml
github.com/wernerd/ZRTPCPP/commit/4654f330317c9948bb61d138eb24d49690ca4637