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Date:      Sat, 19 Sep 2020 22:37:04 +0000
From:      bugzilla-noreply@freebsd.org
To:        python@FreeBSD.org
Subject:   [Bug 249375] net-im/py-matrix-synapse: Update to 1.19.3
Message-ID:  <bug-249375-21822-XiSE4RTWER@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-249375-21822@https.bugs.freebsd.org/bugzilla/>
References:  <bug-249375-21822@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D249375

--- Comment #12 from Denis Kasak <dkasak@termina.org.uk> ---
(In reply to Danilo G. Baio from comment #11)

The security implication is that this is a classic DoS attack. An attacker
sends a malformed event and breaks the application for other users, prevent=
ing
them to join.

Due to the federation, this is not limited to only the attacker's homeserver
but to also all other participating homeservers in the room with the malfor=
med
event.

It definitely seems like a security issue to me, but I'm curious to hear yo=
ur
opinion about it.

--=20
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