Beschreibung
An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of the BIND 9 software. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
CVSS 7.5EPSS 0.416%Risiko 0.78
Quelle öffnen- Veröffentlicht
- 2026-07-22 15:16:51
- Betroffene Versionen
- cannotmatch
- Typ
- Kritische Software
- Zuletzt geändert
- 2026-07-22 20:33:11
- Vektor
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N