[Bug 267884] kadmind can read beyond the end of an incoming message's buffer

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 21 Nov 2022 14:16:31 UTC

Cy Schubert <cy@FreeBSD.org> changed:

           What    |Removed                     |Added
           Assignee|bugs@FreeBSD.org            |cy@FreeBSD.org

--- Comment #1 from Cy Schubert <cy@FreeBSD.org> ---
It appears that upstream Heimdal 7.8.0 suffers the same bug.

The simplest solution would be to strlcpy() the string to a temporary bufer in
match_appl_version(), do the sscanf(), and discard the temporary buffer.

I think this should also be reported to our friends at Heimdal.

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