Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
Exploitability
AV:NAC:LPR:NUI:NScope
S:CImpact
C:NI:HA:NCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N