Versions Affected : All verisons prior to FreeNAS/TrueNAS 11.2-u8

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Description

An issue was discovered in iXsystems FreeNAS (and TrueNAS) 11.2 before 11.2-u8 and 11.3 before 11.3-u1. It allows a denial of service. The login authentication component has no limits on the length of an authentication message or the rate at which such messages are sent.

Workaround

No workaround is available.

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Mitigation

• Upgrade to FreeNAS/TrueNAS 11.2-u8 or later

Commit

• FreeNAS 12.0 Branch Commit : 4b4cd13

• FreeNAS 11.3 Branch Commit : 99147f4

• FreeNAS 11.2 Branch Commit : 53ecefe

• Jira Ticket : NAS-104748

Further information

• 
• NIST CVE-2020-11650 Entry