Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.
Bug 1287654 - CVE-2015-8388 pcre: Buffer overflow caused by certain patterns with an unmatched closing parenthesis (8.38/18)
Summary: CVE-2015-8388 pcre: Buffer overflow caused by certain patterns with an unmatc...
Keywords:
Status: CLOSED DUPLICATE of bug 1237223
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1237224 1287655 1287656 1287657 1287658
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-12-02 13:35 UTC by Adam Mariš
Modified: 2019-09-29 13:40 UTC (History)
16 users (show)

Fixed In Version: pcre 8.38
Clone Of:
Environment:
Last Closed: 2016-02-19 20:38:38 UTC
Embargoed:

Attachments (Terms of Use)

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 ***
Note You need to log in before you can comment on or make changes to this bug.