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Bug 1745267

Summary: NSS Handshake fails with TLS1.3 after NSS rebase to 3.44
Product: Red Hat Enterprise Linux 7 Reporter: Pablo Greco <pablo>
Component: pidginAssignee: Debarshi Ray <debarshir>
Status: CLOSED ERRATA QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.7CC: mboisver, pasik, pschindl, redhat-bugzilla, tpelka
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: pidgin-2.10.11-9.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-09-29 20:21:50 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Deadline: 2020-06-08   

Description Pablo Greco 2019-08-24 16:43:17 UTC
Description of problem:
After updating to 7.7, pidgin won't connect to my znc bouncer anymore.


Version-Release number of selected component (if applicable):
2.10.11-7(7.6) and 2.10.11-8 (7.7) both have the same problem

How reproducible:
Always


Steps to Reproduce:
1. Connect to a znc server with ssl (haven't tested directly to freenode)

Actual results:
Connection fails with error "SSL Handshake Failed"


Expected results:
Connection succeeds


Additional info:

External bug tracker https://developer.pidgin.im/ticket/17217

Local rebuild with patch https://developer.pidgin.im/attachment/ticket/17217/patch-17217.patch (from the linked bug entry) makes pidgin connect again.

Comment 2 Pablo Greco 2019-08-24 17:03:13 UTC
Testing directly against freenode fails with the same "ssl handshake" error, even with nss from 7.6.
Patch fixes also this problem.

Comment 3 Debarshi Ray 2019-09-03 19:09:01 UTC
Thanks for tracking down the root cause and the upstream patch!

I see that we are already carrying the same patch as part of the pidgin-2.13.0 release in RHEL 8, so that means that it has had some real world testing.

Comment 5 Debarshi Ray 2020-05-28 14:38:45 UTC
While https://developer.pidgin.im/attachment/ticket/17217/patch-17217.patch was proposed as a fix for https://developer.pidgin.im/ticket/17217, the accepted upstream was https://bitbucket.org/pidgin/main/commits/2deceb0f9ef9

I am leaning towards using the upstream fix since it deletes a bunch of tricky-to-maintain code in favour of the NSS defaults.

Comment 6 Debarshi Ray 2020-05-28 14:59:00 UTC
Built pidgin-2.10.11-9.el7:
https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=28890930

Comment 10 Petr Schindler 2020-06-18 14:01:06 UTC
I tested with  pidgin-2.10.11-9.el7 version and I was able to login to freenode without problems. Works fine generally.

Comment 12 errata-xmlrpc 2020-09-29 20:21:50 UTC
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 (GNOME bug fix and enhancement update), 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-2020:3987