More information about this security flaw is available in the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=2334771 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.
CVE-2024-56738 seems to affect grub2 and not radare2.
please provide more details by email, upstream ticket is not public.
According to https://nvd.nist.gov/vuln/detail/CVE-2024-56738 it is related to https://savannah.gnu.org/bugs/?66603 Function grub_crypto_memcmp is not embedded in radare2.