Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
The upstream bug for this issue is: https://sourceware.org/bugzilla/show_bug.cgi?id=33639. The fix for this issue was in binutils/dwarf.c, which is only used for the binutils tools, readelf, objdump, etc. This file is not compiled into GDB, and as such, this bug does not impact GDB at all.