Gentoo Linux Security Advisory GLSA 200509-11 – The Mozilla Suite and Firefox are both vulnerable to a buffer overflow while processing hostnames containing multiple hyphens. Note that browsers that have disabled IDN support are immune to this flaw. Versions less than or equal to 1.0.6-r6 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40169/glsa-200509-11.txt
Source: https://packetstormsecurity.com/files/40169/Gentoo-Linux-Security-Advisory-200509-11.html