Bug 1111091

Summary: Character class with literal quotation is miscompiled
Product: Red Hat Enterprise Linux 7 Reporter: Petr Pisar <ppisar>
Component: pcreAssignee: Petr Pisar <ppisar>
Status: CLOSED ERRATA QA Contact: Jan Kepler <jkejda>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0CC: isenfeld, jkejda, jorton, lmiksik, pbokoc
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
URL: http://bugs.exim.org/show_bug.cgi?id=1494
Whiteboard:
Fixed In Version: pcre-8.32-15.el7 Doc Type: Bug Fix
Doc Text:
PCRE previously did not correctly evaluate regular expressions with literal quotations inside character class. For example, the expression "/[\Qa]\E]+/" was not matching the string "a", although it should. The problem has been fixed and regular expressions with literal quotations inside character class are now being evaluated correctly.
 Story Points: ---
Clone Of: 1111054 Environment:
Last Closed: 2015-11-19 05:14:57 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:
Attachments:
Description Flags
Upstream fix ported to 8.32 none

Description Petr Pisar 2014-06-19 08:33:17 UTC 
+++ This bug was initially created as a clone of Bug #1111054 +++

This should match:

$ printf '%s\n%s\n' '/[\Qa]\E]+/' 'a' | ./pcretest -d
PCRE version 8.35 2014-04-04

  re> ------------------------------------------------------------------
  0   7 Bra
  3     a
  5     ]++
  7   7 Ket
 10     End
------------------------------------------------------------------
Capturing subpattern count = 0
No options
First char = 'a'
Need char = ']'
data> No match
data> 

Upstream fixed it by:

commit 8d8c3dbadff3d0735ba696acf211c14b3025622f
Author: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date:   Wed Jun 18 17:17:03 2014 +0000

    Fix bad compile of [\Qx]...  where x is any character.
    
    
    git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1487 2f5784b3-3f2a-0410-8824-cb99058d5e15

----
RHEL-7 is affected (pcre-8.32-12.el7.x86_64)
Comment 1 Petr Pisar 2014-06-19 08:33:56 UTC 
Created attachment 910300 [details]
Upstream fix ported to 8.32
Comment 9 errata-xmlrpc 2015-11-19 05:14:57 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-2015-2142.html