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PuTTY bug ssh1-fwd-trouble

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summary: Reports of SSH-1 trouble, particularly with port/X11 forwarding
class: bug: This is clearly an actual problem we want fixed.
absent-in: 0.55 0.57 2005-02-17
present-in: 2005-02-18 0.58 2005-05-19
fixed-in: r6221 5661adabbc8c40bfb1c96390cd0e0f735f36ae21 2005-08-27 (0.59)

We've had several reports of SSH-1 connections in PuTTY 0.58 bombing out with various error messages when port- or X11 forwarding is in use. The problems do not show up with SSH-2.

We haven't reproduced this ourselves yet. A correspondent has found that the problem appeared between 2005-02-17 and 2005-02-18, which implies that something between r5324:5335 broke it.

Error messages reported include:

"Incorrect CRC received on packet"
"Extremely large packet length from server suggests data stream corruption"
"Out of memory"

Update: we've made a change which is reported to have fixed this. (It turns out that use of port forwarding wasn't absolutely necessary to cause this problem.) Thanks to Gevan Dutton for pointing us in the right direction.

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Audit trail for this bug.

(last revision of this bug record was at 2016-12-27 11:40:21 +0000)

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