Bug 235036

Summary:	CVE-2007-1001 gd flaws in wbmp, JIS font handling (CVE-2007-0455)
Product:	Red Hat Enterprise Linux 5	Reporter:	Joe Orton <jorton>
Component:	php	Assignee:	Joe Orton <jorton>
Status:	CLOSED ERRATA	QA Contact:	David Lawrence <dkl>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.0
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	impact=moderate,source=internet,public=20070310,reported=20070310
Fixed In Version:	RHSA-2007-0153	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-04-20 09:47:27 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:

Description Joe Orton 2007-04-03 14:40:01 UTC

+++ This bug was initially created as a clone of Bug #235028 +++

Description of problem:
An integer overflow exists in the wbmp handling in the copy of the gd library
which is bundled in the "gd" extension:

http://cvs.php.net/viewvc.cgi/php-src/ext/gd/libgd/gdhelpers.h?r1=1.2.2.3&r2=1.2.2.3.4.1&diff_format=u

-- Additional comment from jorton on 2007-04-03 10:11 EST --
Additionally, per bug 224607, Kees Cook from Ubuntu reported a
"off-the-end-of-string increment", which could theoretically lead ot a buffer
overflow.  This flaw would only be exploitable if a JIS-encoded font is used
when processing a special malicious string.  (CVE-2007-0455; Impact: Low)

Comment 1 Mark J. Cox 2007-04-04 09:00:51 UTC

        CVE-2007-0455 Affects: RHEL4 [#224607],Stacks
        impact=low,source=vendorsec,reported=20070124,public=20070126

        CVE-2007-1001 Affects: RHEL4 [#235028]
        impact=moderate,source=internet,public=20070310,reported=20070310

Comment 5 Red Hat Bugzilla 2007-04-20 09:47:27 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-0153.html