Gentoo Linux Security Advisory GLSA 200509-14 – Shiraishi.M reported that Zebedee crashes when 0 is received as the port number in the protocol option header. Versions less than 2.5.3 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40199/glsa-200509-14.txt
Source: https://packetstormsecurity.com/files/40199/Gentoo-Linux-Security-Advisory-200509-14.html