Bug 1437369 (CVE-2017-7246)

Summary:	CVE-2017-7246 pcre: stack-based buffer overflow write in pcre32_copy_substring
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	adam.stokes, andrew, csutherl, databases-maint, erik-fedora, fedora-mingw, fedora, fidencio, gzaronik, hhorak, jclere, jdoyle, jgrulich, jorton, klember, lgao, lkundrak, marcandre.lureau, mbabacek, mclasen, mmuzila, mreynolds, mschorm, mturk, myarboro, pmyers, ppisar, pslavice, rcollet, rjones, rsvoboda, twalsh, walters, webstack-team, weli
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-03-30 08:15:47 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:	1437370, 1437483, 1437484, 1437485, 1437486, 1437487
Bug Blocks:	1434510, 1439436

Description Martin Prpič 2017-03-30 08:14:25 UTC

A stack-based buffer overflow flaw was found in PCRE. An attacker could use a crafted file that, when processed by PCRE, would crash the application using the PCRE library.

This issue only affects the PCRE version 8.40.

Comment 1 Martin Prpič 2017-03-30 08:15:20 UTC

Created pcre tracking bugs for this issue:

Affects: fedora-all [bug 1437370]

Comment 2 Martin Prpič 2017-03-30 08:15:47 UTC

External References:

https://blogs.gentoo.org/ago/2017/03/20/libpcre-two-stack-based-buffer-overflow-write-in-pcre32_copy_substring-pcre_get-c/

Comment 3 Petr Pisar 2017-03-30 11:24:02 UTC

Upstream report <https://bugs.exim.org/show_bug.cgi?id=2057>.

Comment 4 Martin Prpič 2017-03-30 11:42:16 UTC

According to the upstream report, this issue (along with CVE-2017-7244 and CVE-2017-7245) was fixed with:

commit 8037f71d03b3cd8919248f38448a0a2d3715c18c
Author: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date:   Fri Feb 24 17:30:30 2017 +0000

    Fix Unicode property crash for 32-bit characters greater than 0x10ffff.
    
    
    git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1688 2f5784b3-3f2a-0410-8824-
cb99058d5e15

Comment 5 Martin Prpič 2017-03-30 12:02:01 UTC

Created glib2 tracking bugs for this issue:

Affects: fedora-all [bug 1437484]


Created mingw-glib2 tracking bugs for this issue:

Affects: epel-7 [bug 1437486]
Affects: fedora-all [bug 1437487]


Created mingw-pcre tracking bugs for this issue:

Affects: epel-7 [bug 1437483]
Affects: fedora-all [bug 1437485]

Comment 7 errata-xmlrpc 2018-08-16 16:08:50 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2018:2486 https://access.redhat.com/errata/RHSA-2018:2486