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Versions Affected : All verisons prior to 11.3-U3.2


The SCTP layer does improper checking when an application tries to update a shared key.

Therefore an unprivileged local user can trigger a use-after- free situation, for example by specific sequences of updating shared keys and closing the SCTP association. Triggering the use-after-free situation may result in unintended kernel behaviour including a kernel panic.


No workaround is available.


  • Upgrade to FreeNAS 11.3-U3.2 or later.


Further information