Comment # 4 on bug 1191331 from Andreas Stieger

(In reply to Paul Fee from comment #3)
> Leap 15.3 ships with hiredis 0.13.3, the fix is not available for that
> version of hiredis.

This is not in line with our security maintenance policy. Create a backport
against 0.13.3. Do not close the issue but re-assign to security-team@suse.de
when you are done. Set a needinfo request on them if unable.

Here is the debian backport to help you get started:

https://lists.debian.org/debian-lts-announce/2021/10/msg00007.html
https://salsa.debian.org/lamby/pkg-hiredis/-/commit/e210141d449659042f00fad71e8bef7caea53c67