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https://issues.apache.org/jira/browse/KUDU-1926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17306701#comment-17306701
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ASF subversion and git services commented on KUDU-1926:
-------------------------------------------------------
Commit d0c0483a15db03c2bb4217d9c9ce15e39c858629 in kudu's branch
refs/heads/master from Alexey Serbin
[ https://gitbox.apache.org/repos/asf?p=kudu.git;h=d0c0483 ]
KUDU-1926: disable TLS/SSL renegotiation
This patch disables TLS ciphers renegotiation for TLSv1.2 and prior
protocol versions. In case of OpenSSL version 1.1.0h and newer, we are
using SSL_OP_NO_RENEGOTIATION option to disable all renegotiations. In
case of OpenSSL version prior to 1.1.0a, the undocumented flag
SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS is used. See [1], [2] and [3]
for more context.
The moot point is the version interval between 1.1.0a and 1.1.0g
(inclusive): the SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag is no longer
available from the application side, but SSL_OP_NO_RENEGOTIATION is not
yet present. So, if a server binary has been compiled with OpenSSL in
the specified version range, it's still advertising the renegotiation
option, even if it's run against OpenSSL 1.1.0h or later versions.
[1] https://www.openssl.org/docs/man1.1.0/man3/SSL_set_options.html
[2]
https://github.com/openssl/openssl/blob/f9398cc2b31858ddaaea3f5cfec2fce7f9b90347/CHANGES#L1038-L1049
[3] https://github.com/openssl/openssl/issues/4739
Change-Id: Ib585dcfc2c3f641268ceded19e0ea5c551d97ae1
Reviewed-on: http://gerrit.cloudera.org:8080/17204
Tested-by: Kudu Jenkins
Reviewed-by: Andrew Wong <[email protected]>
> Disable SSL session renegotiation
> ---------------------------------
>
> Key: KUDU-1926
> URL: https://issues.apache.org/jira/browse/KUDU-1926
> Project: Kudu
> Issue Type: Improvement
> Components: rpc, security
> Affects Versions: 1.3.0
> Reporter: Todd Lipcon
> Assignee: Alexey Serbin
> Priority: Minor
>
> SSL renegotiation has had a couple of CVEs in the past. We should figure out
> if it's easy to disable it and do so, since we don't expect to use it in KRPC.
> (it may already be the case that it's disabled by virtue of us not handling
> SSL_WANT_READ return from ssl_write, and SSL_WANT_WRITE from ssl_read).
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