Gentoo Linux Security Advisory GLSA 200408-26 – zlib versions 1.2.1-r2 and below contain a bug in the handling of errors for the inflate() and inflateBack() functions, allowing for a denial of service attack.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/34189/glsa-200408-26.txt
Source: https://packetstormsecurity.com/files/34189/Gentoo-Linux-Security-Advisory-200408-26.html