Bug#976437: libwebkit2gtk-4.0-37: Websocket sends appens extra bytes to messages

Alberto Garcia berto at igalia.com
Tue Dec 8 18:35:43 GMT 2020

On Mon, Dec 07, 2020 at 03:12:57PM +0200, Claudio Saavedra wrote:
> On Mon, 2020-12-07 at 12:46 +0100, Alberto Garcia wrote:
> > Do I understand correctly that this is due to bugs in libsoup then?
> Yes. libsoup versions previous to 2.68 don't have a WebSocket
> implementation that had been thoroughly tested (or tested at all) with
> WebKit. If you have a WebKit version that uses libsoup's websockets,
> you MUST use 2.68 or newer. 
> > If this was working in earlier versions of webkit I only see two
> > options:
> > 
> > - Reverting the changes in WebKit (probably  
> > https://trac.webkit.org/changeset/248099/webkit)
> > - Updating libsoup, or backporting the relevant fixes (if libsoup is
> >   indeed buggy).
> I think in this case the easiest is to actually backport the libsoup
> bug fixes. It's also what makes more sense from a security perspective,
> as those are fixes to the websocket implementation in libsoup that is
> probably used by other applications as well. Reverting the WebKit
> changeset will not fix libsoup's bugs.

Ok, adding Simon McVittie and Sebastien Bacher to Cc


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