There is a new pull request by CameronNemo against master on the void-packages repository

https://github.com/CameronNemo/void-packages libslirp-cve-2020-1983
https://github.com/void-linux/void-packages/pull/21322

libslirp: update to 4.3.0.
CVE-2020-1983

A patch file from https://github.com/void-linux/void-packages/pull/21322.patch is attached