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Bug 1380393 - UnboundLocalError in yacc module in FIPS mode
Summary: UnboundLocalError in yacc module in FIPS mode
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: python-ply
Version: 7.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Nathaniel McCallum
QA Contact: Abhijeet Kasurde
URL:
Whiteboard:
Depends On:
Blocks: 1125174 1317041 1427443
TreeView+ depends on / blocked
 
Reported: 2016-09-29 13:00 UTC by Martin Bašti
Modified: 2017-08-01 09:42 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-08-01 09:42:02 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
console.log (4.16 KB, text/plain)
2017-05-03 11:20 UTC, Abhijeet Kasurde 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2017:2304 0 normal SHIPPED_LIVE ipa bug fix and enhancement update 2017-08-01 12:41:35 UTC

Description Martin Bašti 2016-09-29 13:00:59 UTC 
Description of problem:
In FIPS mode we are receiving UnboundLocalError

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


How reproducible:
Always

Steps to Reproduce:
1. enable FIPS
2. yum install ipa-client
3. run ipa-client-install

Actual results:
# ipa-client-install

Traceback (most recent call last):
  File "/usr/sbin/ipa-client-install", line 43, in <module>
    import ipaclient.ntpconf
  File "/usr/lib/python2.7/site-packages/ipaclient/ntpconf.py", line 24, in <module>
    from ipaplatform.tasks import tasks
  File "/usr/lib/python2.7/site-packages/ipaplatform/tasks.py", line 24, in <module>
    from ipaplatform.redhat.tasks import RedHatTaskNamespace
  File "/usr/lib/python2.7/site-packages/ipaplatform/redhat/tasks.py", line 54, in <module>
    """)
  File "/usr/lib64/python2.7/site-packages/cffi/api.py", line 103, in cdef
    self._parser.parse(csource, override=override, packed=packed)
  File "/usr/lib64/python2.7/site-packages/cffi/cparser.py", line 166, in parse
    self._internal_parse(csource)
  File "/usr/lib64/python2.7/site-packages/cffi/cparser.py", line 172, in _internal_parse
    ast, macros, csource = self._parse(csource)
  File "/usr/lib64/python2.7/site-packages/cffi/cparser.py", line 127, in _parse
    ast = _get_parser().parse(csource)
  File "/usr/lib64/python2.7/site-packages/cffi/cparser.py", line 32, in _get_parser
    _parser_cache = pycparser.CParser()
  File "/usr/lib/python2.7/site-packages/pycparser/c_parser.py", line 111, in __init__
    outputdir=taboutputdir)
  File "/usr/lib/python2.7/site-packages/ply/yacc.py", line 3065, in yacc
    signature = pinfo.signature()
  File "/usr/lib/python2.7/site-packages/ply/yacc.py", line 2814, in signature
    return sig.digest()
UnboundLocalError: local variable 'sig' referenced before assignment

Local variables in innermost frame:
self: <ply.yacc.ParserReflect object at 0x26e3bd0>
md5: <built-in function openssl_md5>


Expected results:
No Fail

Additional info:

md5 is not supported in FIPS mode, it must be at least SHA256
Comment 2 Standa Laznicka 2017-02-06 07:53:24 UTC 
Seems to have been fixed upstream:
https://github.com/dabeaz/ply/commit/3335be2931e42803ddc64ce2df61f7b0aad1f30c
Comment 5 Abhijeet Kasurde 2017-05-03 11:19:58 UTC 
Verified using IPA Client version :: ipa-client-4.5.0-9.el7.x86_64

Marking BZ as verified. See attachment for console log.
Comment 6 Abhijeet Kasurde 2017-05-03 11:20:40 UTC 
Created attachment 1275881 [details]
console.log
Comment 7 errata-xmlrpc 2017-08-01 09:42:02 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://access.redhat.com/errata/RHBA-2017:2304
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