Gentoo Linux Security Advisory GLSA 200506-17 – SpamAssassin and Vipul’s Razor contain a Denial of Service vulnerability when handling special misformatted long message headers. Versions less than 3.0.4 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/38203/glsa-200506-17.txt
Source: https://packetstormsecurity.com/files/38203/Gentoo-Linux-Security-Advisory-200506-17.html