A malformed zone may contain an NS or DNAME node above its origin, which named treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server (e.g., via zone transfer), queries for names inside the configured zone then lose authoritative status and return an out-of-zone delegation. On a server that also provides recursion BIND can follow this locally sourced cut and cache attacker-supplied data, affecting names outside the configured zone. This situation persists as long as the malformed zone remains in the zone database. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.
4.3.5-3ubuntu24.3.5-3ubuntu34.3.5-3ubuntu44.3.5-3ubuntu54.3.5-3ubuntu64.3.5-3ubuntu74.3.5-3ubuntu7.14.3.5-3ubuntu7.24.3.5-3ubuntu7.34.3.5-3ubuntu7.41:9.11.16+dfsg-3~build11:9.11.16+dfsg-3~ubuntu11:9.18.39-0ubuntu0.22.04.71:9.18.39-0ubuntu0.24.04.81:9.20.24-1ubuntu0.41:9.20.18-1ubuntu21:9.20.23-1ubuntu11:9.20.24-1ubuntu21:9.20.24-1ubuntu31:9.9.5.dfsg-3ubuntu0.19+esm151:9.10.3.dfsg.P4-8ubuntu1.19+esm111:9.11.3+dfsg-1ubuntu1.19+esm61:9.18.30-0ubuntu0.20.04.2+esm3Exploitability
AV:NAC:HPR:HUI:NScope
S:CImpact
C:NI:HA:NCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N