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KNOWN_BUGS: FTPS upload data loss with TLS 1.3

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Bug: https://github.com/curl/curl/issues/6149
Reported-by: Bylon2@users.noreply.github.com

Closes https://github.com/curl/curl/pull/7623
This commit is contained in:
Jay Satiro 2021-08-24 12:54:03 -04:00
parent 825911be58
commit 1e67c73b5a
1 changed files with 18 additions and 0 deletions
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@ -86,6 +86,7 @@ problems may have been fixed or changed somewhat since this was written!
7.8 Premature transfer end but healthy control channel
7.9 Passive transfer tries only one IP address
7.10 FTPS needs session reuse
7.11 FTPS upload data loss with TLS 1.3
8. TELNET
8.1 TELNET and time limitations don't work
@ -723,6 +724,23 @@ problems may have been fixed or changed somewhat since this was written!
https://github.com/curl/curl/issues/4654
7.11 FTPS upload data loss with TLS 1.3
During FTPS upload curl does not attempt to read TLS handshake messages sent
after the initial handshake. OpenSSL servers running TLS 1.3 may send such a
message. When curl closes the upload connection if unread data has been
received (such as a TLS handshake message) then the TCP protocol sends an
RST to the server, which may cause the server to discard or truncate the
upload if it hasn't read all sent data yet, and then return an error to curl
on the control channel connection.
Since 7.78.0 this is mostly fixed. curl will do a single read before closing
TLS connections (which causes the TLS library to read handshake messages),
however there is still possibility of an RST if more messages need to be read
or a message arrives after the read but before close (network race condition).
https://github.com/curl/curl/issues/6149
8. TELNET
8.1 TELNET and time limitations don't work