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Bug 1175540

Summary:	Backport patches enabling TLS 1.1 and better to spice-server
Product:	Red Hat Enterprise Linux 7	Reporter:	David Jaša <djasa>
Component:	spice	Assignee:	Default Assignee for SPICE Bugs <rh-spice-bugs>
Status:	CLOSED ERRATA	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.0	CC:	dblechte, djasa, lmiksik, marcandre.lureau, tpelka
Target Milestone:	rc
Target Release:	7.1
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	spice-0.12.4-9.el7	Doc Type:	Bug Fix
Doc Text:	Cause: spice-server uses exclusively TLS version 1.0 for encrypted connections no matter what version(s) the client advertises. Consequence: newer versions of TLS cannot be used Fix: spice-server code was changed to allow TLS 1.0 or newer Result: clients can connect using versions of TLS newer than 1.0	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-05 07:56:38 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:

Description David Jaša 2014-12-18 01:18:26 UTC

Description of problem:
Backport patches enabling TLS 1.1 and better to spice-server. The patches were added in 0.12.5 but RHEL 7 still uses 0.12.4. RHEL 6 already features this patch since RHEL 6.6.

Version-Release number of selected component (if applicable):
0.12.4-8

How reproducible:
always

Steps to Reproduce:
1. connect to spice-server
2. look what TLS version is used (e.g. in Wireshark)
3.

Actual results:
version is TLS 1.0

Expected results:
version should be TLS 1.2

Additional info:
spice-server is the culprit, spice-gtk already updated to use SSLv23_method():
$ grep -rIsn 'TLSv1_method\|SSLv23_method' /usr/src/debug/spice*
/usr/src/debug/spice-0.12.4/server/reds.c:3242:    ssl_method = TLSv1_method();
/usr/src/debug/spice-gtk-0.22/spice-gtk-0.22/gtk/spice-channel.c:2285:        c->ctx = SSL_CTX_new(SSLv23_method());

Comment 1 Marc-Andre Lureau 2015-01-02 14:31:47 UTC

It seems the only patch required is:

commit 4fc9ba5f27dd4c04441d38c893ee962da01baf80
Author:     David Jaša <djasa>
AuthorDate: Wed Nov 27 17:45:49 2013 +0100
Commit:     Christophe Fergeau <cfergeau>
CommitDate: Thu Dec 12 10:39:11 2013 +0100

If qa is ok for a new build, I think this bug is important enought for 7.1 exception.

Comment 2 Marc-Andre Lureau 2015-01-05 20:37:07 UTC

Can it get exception+ too? David, this patch is already in 6.6, so I think it should also be in upcoming 7.1 release.

Comment 7 errata-xmlrpc 2015-03-05 07:56:38 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, 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://rhn.redhat.com/errata/RHBA-2015-0335.html