A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -> 9.10.8-P1, 9.11.3 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.10.7-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected.
No PoCs from references.
- https://github.com/ARPSyndicate/cvemon
- https://github.com/HJXSaber/bind9-my
- https://github.com/balabit-deps/balabit-os-8-bind9-libs
- https://github.com/balabit-deps/balabit-os-9-bind9-libs
- https://github.com/krlabs/dnsbind-vulnerabilities
- https://github.com/openkylin/bind9-libs
- https://github.com/pexip/os-bind9
- https://github.com/pexip/os-bind9-libs
- https://github.com/psmedley/bind-os2
- https://github.com/sischkg/dnsonsen_advent_calendar