Bug 1111091 – Character class with literal quotation is miscompiled

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Bug 1111091 - Character class with literal quotation is miscompiled

Summary:	Character class with literal quotation is miscompiled

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	pcre (Show other bugs)
Sub Component:
Version:	7.0
Hardware:	Unspecified Unspecified

Priority	unspecified Severity unspecified
Target Milestone:	rc
Target Release:	---
Assigned To:	Petr Pisar
QA Contact:	Jan Kepler
Docs Contact:

URL:	http://bugs.exim.org/show_bug.cgi?id=...
Whiteboard:
Keywords:	Patch

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2014-06-19 04:33 EDT by Petr Pisar
Modified:	2015-11-19 00:14 EST (History)
CC List:	5 users (show)

See Also:
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 00:14:57 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Upstream fix ported to 8.32 (1.73 KB, patch) 2014-06-19 04:33 EDT, Petr Pisar	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2015:2142	normal	SHIPPED_LIVE	pcre bug fix update	2015-11-19 03:16:47 EST

Groups: None (edit)

Description Petr Pisar 2014-06-19 04:33:17 EDT

+++ 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 04:33:56 EDT

Created attachment 910300 [details]
Upstream fix ported to 8.32

Comment 9 errata-xmlrpc 2015-11-19 00:14:57 EST

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

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