This update for pdns-recursor fixes the following issues:
Update to 4.8.6:
fixes case when crafted DNSSEC records in a zone can lead to
a denial of service in Recursor
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
(boo#1219823, boo#1219826, CVE-2023-50387, CVE-2023-50868)
Changes in 4.8.5:
(I)XFR: handle partial read of len prefix.
YaHTTP: Prevent integer overflow on very large chunks.
Fix setting of policy tags for packet cache hits.
Changes in 4.8.4:
Deterred spoofing attempts can lead to authoritative servers
being marked unavailable (boo#1209897, CVE-2023-26437)