Gentoo Linux Security Advisory GLSA 200507-28 – Earlier versions of emul-linux-x86-baselibs contain a vulnerable version of zlib, which may lead to a buffer overflow. Versions less than 2.2 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39022/glsa-200507-28.txt
Source: https://packetstormsecurity.com/files/39022/Gentoo-Linux-Security-Advisory-200507-28.html