Operational Notification: Change 4892 exposed multiple problems affecting inline-signing
mcnally at isc.org
Wed Sep 19 23:04:33 UTC 2018
Posting date: 19 September 2018
Program Impacted: BIND
Versions affected: 9.10.8 -> 9.10.8-P1, 9.11.4 -> 9.11.4-P1,
9.12.1 -> 9.12.2-P1. Also versions 9.13.0 ->
9.13.3 of the 9.13 development branch.
A code change intended to fix a memory leak that could occur
after "rndc reload" exposed multiple problems with inline-signing
that were not possible to trigger in versions prior to change 4892.
In versions containing change #4892 but prior to the correction
of the multiple related issues, it is possible for inline-signing
to fail to properly sign records or to properly service refresh
events. inline-signing should be considered broken in the affected
versions and operators should either upgrade to a corrected
version or revert to traditional signing.
Traditional signing can be used instead of inline-signing.
If you are running a version affected by this bug you can prevent
it by upgrading to a release containing the fix which reverses
the change in behavior. The patched versions can all be downloaded
+ BIND 9 version 9.11.4-P2
+ BIND 9 version 9.12.2-P2
Do you have Questions? Questions regarding this notification should
go to support at isc.org.
Additional information on our Operational Notifications is here:
https://www.isc.org/software/notifications, and Phased Disclosure Process
is here: https://www.isc.org/security-vulnerability-disclosure-policy
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