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Bug 1287654

Summary:	CVE-2015-8388 pcre: Buffer overflow caused by certain patterns with an unmatched closing parenthesis (8.38/18)
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	adam.stokes, andrew, carnil, erik-fedora, jgrulich, jorton, lkundrak, mclasen, mmaslano, ppisar, rcollet, rmeggins, sardella, slawomir, walters, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	pcre 8.38	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-19 20:38:38 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1237224, 1287655, 1287656, 1287657, 1287658
Bug Blocks:

Description Adam Mariš 2015-12-02 13:35:04 UTC

It was discovered that PCRE before 8.38 mishandles the /(?=di(?<=(?1))|(?=(.))))/ pattern and related patterns with an unmatched closing parenthesis that contained a backward assertion which itself contained a forward reference, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression.

Comment 1 Adam Mariš 2015-12-02 13:35:57 UTC

Created pcre tracking bugs for this issue:

Affects: fedora-all [bug 1287655]

Comment 2 Adam Mariš 2015-12-02 13:36:06 UTC

Created glib2 tracking bugs for this issue:

Affects: fedora-all [bug 1287657]

Comment 3 Adam Mariš 2015-12-02 13:36:15 UTC

Created mingw-pcre tracking bugs for this issue:

Affects: fedora-all [bug 1287656]
Affects: epel-7 [bug 1287658]

Comment 4 Adam Mariš 2015-12-02 15:23:53 UTC

Corresponds to item 18 in http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup

Comment 5 Petr Pisar 2015-12-02 15:59:56 UTC

Fixed in upstream with:

commit 764692f9aea9eab50fdba6cb537441d8b34c6c37
Author: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date:   Tue Jun 23 16:34:53 2015 +0000

    Fix buffer overflow for forward reference within backward assertion with exc
ess
    closing parenthesis. Bugzilla 1651.
    
    
    git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1571 2f5784b3-3f2a-0410-8824-
cb99058d5e15

Comment 6 Salvatore Bonaccorso 2015-12-02 21:40:38 UTC

Is this CVE a duplicate of CVE-2015-5073?

Comment 7 Petr Pisar 2015-12-03 14:13:33 UTC

I think it is.

Comment 8 Tomas Hoger 2016-02-19 20:38:38 UTC


*** This bug has been marked as a duplicate of bug 1237223 ***