Versions Affected : All versions prior to TrueNAS 12.0-U8

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Description

Under certain conditions involving use of the highlight buffer while text is scrolling on the console, console data may overwrite data structures associated with the system console or other kernel memory.

Users with access to the system console may be able to cause system misbehaviour.

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Workaround

No workaround is available.

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Mitigation

• Upgrade to TrueNAS 12.0-U8 or later.

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Commit

• FreeBSD Revision : r371491
• TrueNAS Commit : 8dd6bbc
• TrueNAS Commit : c25fe91
• JIRA Ticket : NAS-114278

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Further information

• FreeBSD Errata Notice Entry
• MITRE Entry