- Update to release 9.18.16
Security Fixes:
* The overmem cleaning process has been improved, to prevent the
cache from significantly exceeding the configured
max-cache-size limit. (CVE-2023-2828)
* A query that prioritizes stale data over lookup triggers a
fetch to refresh the stale data in cache. If the fetch is
aborted for exceeding the recursion quota, it was possible for
named to enter an infinite callback loop and crash due to stack
overflow. This has been fixed. (CVE-2023-2911)
New Features:
* The system test suite can now be executed with pytest (along
with pytest-xdist for parallel execution).
Removed Features:
* TKEY mode 2 (Diffie-Hellman Exchanged Keying) is now
deprecated, and will be removed in a future release. A warning
will be logged when the tkey-dhkey option is used in
named.conf.
Bug Fixes:
* BIND could get stuck on reconfiguration when a listen-on
statement for HTTP is removed from the configuration. That has
been fixed.
* Previously, it was possible for a delegation from cache to be
returned to the client after the stale-answer-client-timeout
duration. This has been fixed.
* BIND could allocate too big buffers when sending data via
stream-based DNS transports, leading to increased memory usage.
This has been fixed.
* When the stale-answer-enable option was enabled and the
stale-answer-client-timeout option was enabled and larger than
0, named previously allocated two slots from the
clients-per-query limit for each client and failed to gradually
auto-tune its value, as configured. This has been fixed.