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Bug 1405956 - wget calls gnutls_priority_set() multiple times
Summary: wget calls gnutls_priority_set() multiple times
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: wget
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Tomáš Hozza
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-12-19 09:54 UTC by Nikos Mavrogiannopoulos
Modified: 2017-02-10 17:43 UTC (History)
3 users (show)

Fixed In Version:
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Environment:
Last Closed: 2017-02-10 17:43:09 UTC
Type: Bug
Embargoed:

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Description Nikos Mavrogiannopoulos 2016-12-19 09:54:51 UTC 
Description of problem:
wget in src/gnutls.c calls gnutls_set_default_priority (session) which sets the default cipher priorities according to the system policy. However, at the following lines it overwrites that policy in the switch (opt.secure_protocol).

In particular it enters:
    case secure_protocol_auto:
      err = gnutls_priority_set_direct (session, "NORMAL:%COMPAT:-VERS-SSL3.0", NULL);

That violates the Fedora system-wide policy, since it overwrites the default.
Comment 1 Nikos Mavrogiannopoulos 2016-12-19 10:08:24 UTC 
This behaviors creates side effects in the end priority generated. One is described at:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/VP6URPLIMH5XARDTBBJKBOUVNIS5OLCH/

A work around (allowing multiple calls to these functions) can be applied in gnutls as well:
https://gitlab.com/gnutls/gnutls/merge_requests/195
Comment 2 Nikos Mavrogiannopoulos 2016-12-19 15:33:40 UTC 
Posted upstream a possible patch: http://lists.gnu.org/archive/html/bug-wget/2016-12/msg00018.html
Comment 3 Tomáš Hozza 2017-02-10 17:43:09 UTC 
https://koji.fedoraproject.org/koji/buildinfo?buildID=843201
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