https://bugs.exim.org/show_bug.cgi?id=3001
Jeremy Harris <jgh146exb@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|medium |high
Assignee|unallocated@??? |jgh146exb@???
CC| |exim-dev@???
Component|Unfiled |SMTP Authentication
Summary|(placeholder) |infoleak in SPA
| |authenticator, client
--- Comment #1 from Jeremy Harris <jgh146exb@???> ---
ZDI-CAN-17433 (Trend Micro)
A crafted SPA challenge from the server can cause the client authenticator
to read OOB; the data is then returned to the server.
Fix: validate the offset contained in the challenge, to avoid reading
past the end of the challenge data structure.
Vulnerable since at least 4.50, probably longer.
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