Out-of-bounds Read in GitHub repository vim/vim prior to 9.0.
https://security.gentoo.org/glsa/202305-16
https://security.gentoo.org/glsa/202208-32
https://huntr.dev/bounties/654aa069-3a9d-45d3-9a52-c1cf3490c284
https://github.com/vim/vim/commit/5e59ea54c0c37c2f84770f068d95280069828774