Operational Notification: liburcu memory leak may impact BIND 9.20 on BSD

[Suzanne Goldlust]

ISC is aware of an issue in the liburcu library which causes a memory leak on some platforms.

BIND 9.20 and later use this library, and experience the leak on affected platforms. Older versions of BIND do not use this library and are not affected.

Linux platforms are **not** affected. FreeBSD and OpenBSD **are** affected. A preliminary analysis by ISC suggests that NetBSD and Mac OS X *may* be immune; however, as of this writing, that is not confirmed with upstream sources.

For more details, please visit our Knowledgebase article at https://kb.isc.org/docs/liburcu-leak

Thank you for using ISC’s software.