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 CVE links to this bug: https://bugzilla.redhat.com/show_bug.cgi?id=2460006 which is the binutils version of this bug. This then links to the upstream bug: https://sourceware.org/bugzilla/show_bug.cgi?id=34049 Which indicates that the bug is fixed, and that the fix is in the function xcoff_link_add_symbols. See comment: https://sourceware.org/bugzilla/show_bug.cgi?id=34049#c3 for details. This is not the first CVE in xcoff_link_add_symbols we've seen recently, see: https://bugzilla.redhat.com/show_bug.cgi?id=2443833. The analysis on that bug shows that xcoff_link_add_symbols is not used or called by GDB. As such this issue does not apply to GDB.