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Subject: [Bug 202540] libteken assert() fail on teken.c line 231
Date: Fri, 21 Aug 2015 07:25:00 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202540

--- Comment #4 from Ed Schouten <ed@FreeBSD.org> ---
Exactly. In stable these are not enabled.

Though I agree that these issues are pretty bad, we usually treat the console
as something that only trusted people can access. As far as I know, there isn't
a way to print arbitrary, unescaped data on one of vt(4)'s windows without
having a local login session.

Earlier this year we wrote an erratum for something similar: a bad ioctl() call
on vt(4) that could cause the system to crash.

https://www.freebsd.org/security/advisories/FreeBSD-EN-15:01.vt.asc

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