Red Hat Bugzilla – Bug 1335035
[RFE]allow IO::Socket::SSL to support TLSv1.1, TLSv1.2
Last modified: 2017-08-01 16:30:01 EDT
+++ This bug was initially created as a clone of Bug #1331037 +++ [...] 3. What is the nature and description of the request? Currently, perl-Net-SSLeay and perl-IO-Socket-SSL (as shipped in el6) do not allow TLS protocol versions 1.1 or 1.2 to be explicitly specified. [...] 10. List any affected packages or components. perl-IO-Socket-SSL --- Additional comment from Petr Pisar on 2016-05-11 07:59:06 GMT --- RHEL-7 (perl-IO-Socket-SSL-1.94-3.el7.noarch) is affected.
Created attachment 1207964 [details] Upstream fix ported to RHEL-7 (first part)
Created attachment 1207965 [details] Upstream fix ported to RHEL-7 (second part)
Reproducer is in bug #1375525, comment #4. The only difference against RHEL-6 is it does not report the reason for the failure. But this how RHEL-7 behaved even previously, so this not a new bug.
Resolved in 6.8-Z so this is an effective RHEL6->7 regression.
Hello, on RHEL-6 in case of rejected connection there is a message: 'IO::Socket::SSL:.*SSL connect attempt failed with unknown error.*SSL routines:SSL3_GET_RECORD:wrong version number' On RHEL-7 there is no such message when the connection fails. Is this expected/intentional?
The reproduce https://bugzilla.redhat.com/show_bug.cgi?id=1375525#c4 describes that the error appears when fix is applied. Petr Pisar wrote in comment#3 the error does not report on RHEL-7. You can see it when you enable debug level 1: perl -M'IO::Socket::SSL qw(debug1)' -e 'my $cl = IO::Socket::SSL->new(PeerAddr => "localhost:4433", SSL_version => "TLSv1_2") or die $!; print $cl "GET / HTTP/1.0\r\n\r\n";print <$cl>;' [...] DEBUG: .../IO/Socket/SSL.pm:552: fatal SSL error: SSL connect attempt failed with unknown error error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number DEBUG: .../IO/Socket/SSL.pm:552: fatal SSL error: SSL connect attempt failed with unknown error error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number Died at -e line 1.
You're not using a supported string for the version. In IO::Socket::SSL v1.94 the value for TLSv1.2 is "TLSv12". Use of "TLSv1_1" and "TLSv1_2" was introduced in v1.964 (http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.964/Changes).
This bug report is about adding support for the values. Both variants without and with an underscore should be available after resolving this bug report. The test failure discusses in comment #8 is a negative test. It checks that if a client requests TLSv1.2 only but a server does not support it, the connection must fail. I cannot see any problem.
(In reply to Jitka Plesnikova from comment #9) > Petr Pisar wrote in comment#3 the error does not report on RHEL-7. > You can see it when you enable debug level 1: Thank you, I have missed that note somehow.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2017:1912