Gentoo Linux Security Advisory GLSA 200805-17 – Tavis Ormandy and Will Drewry of the Google Security Team have reported a double free vulnerability when processing a crafted regular expression containing UTF-8 characters. Versions less than 5.8.8-r5 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/66545/glsa-200805-17.txt
Source: https://packetstormsecurity.com/files/66545/Gentoo-Linux-Security-Advisory-200805-17.html