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16 lines
696 B
Diff
16 lines
696 B
Diff
"Minor logic error in ObscureKeystrokeTiming"
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https://marc.info/?l=oss-security&m=171982317624594&w=2
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--- a/clientloop.c
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+++ b/clientloop.c
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@@ -608,8 +608,9 @@ obfuscate_keystroke_timing(struct ssh *ssh, struct timespec *timeout,
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if (timespeccmp(&now, &chaff_until, >=)) {
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/* Stop if there have been no keystrokes for a while */
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stop_reason = "chaff time expired";
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- } else if (timespeccmp(&now, &next_interval, >=)) {
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- /* Otherwise if we were due to send, then send chaff */
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+ } else if (timespeccmp(&now, &next_interval, >=) &&
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+ !ssh_packet_have_data_to_write(ssh)) {
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+ /* If due to send but have no data, then send chaff */
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if (send_chaff(ssh))
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nchaff++;
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}
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