cbcvebase.
CVE-2021-25219
published 2021-10-27

CVE-2021-25219: In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as…

medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

Affected

46 ranges· showing 25
VendorProductVersion rangeFixed in
debianbind9< bind9 1:9.17.19-1 (bookworm)bind9 1:9.17.19-1 (bookworm)
debiandebian_linux
debiandebian_linux
debiandebian_linux
fedoraprojectfedora
fedoraprojectfedora
fedoraprojectfedora
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind
iscbind

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
osv5.3MEDIUM