Bug 382411 (CVE-2007-5898)

Summary:	CVE-2007-5898 php htmlentities/htmlspecialchars multibyte sequences
Product:	[Other] Security Response	Reporter:	Mark J. Cox <mjc>
Component:	vulnerability	Assignee:	Joe Orton <jorton>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	kreilly, security-response-team
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	5.2.6-2.fc8	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-12-22 23:18:24 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:	445917, 445919, 445920, 445921, 445922, 445923, 445924, 445925
Bug Blocks:

Description Mark J. Cox 2007-11-14 13:57:42 UTC

http://www.php.net/ChangeLog-5.php#5.2.5

FIX: Fixed htmlentities/htmlspecialchars not to accept partial multibyte
sequences (CVE-2007-5898, Reported by Rasmus Lerdorf)

COMMENT: If a PHP page uses the htmlentities() and htmlspecialchars()
to display untrusted script input in HTML element attributes, a
cross-site-scripting attack may be possible, depending on the browser
used.  [Of Firefox 1.5, 2.0, MSIE 6, 7, only MSIE6 seems vulnerable]

AFFECTS: all

Comment 1 Tomas Hoger 2007-11-29 14:15:37 UTC

Probable upstream patches:

http://cvs.php.net/viewvc.cgi/php-src/ext/standard/html.c?r1=1.111.2.2.2.14&r2=1.111.2.2.2.14.2.1
http://cvs.php.net/viewvc.cgi/php-src/ext/standard/tests/strings/htmlentities-utf.phpt?r1=1.1&r2=1.2

Comment 2 Mark J. Cox 2007-12-11 08:37:31 UTC

Unfortunately the CVSSv2 score provided by nvt.nist.gov has been incorrectly coded.

They gave CVSS v2 Base score: 10.0  (High) (AV:N/AC:L/Au:N/C:C/I:C/A:C)

But in fact it should be

CVSS v2 Base score: 4.3 (Medium) (AV:N/AC:M/Au:N/C:N/I:P/A:N)

We've sent a correction to NVD.

Comment 6 Fedora Update System 2008-06-14 04:20:02 UTC

php-5.2.6-2.fc8 has been pushed to the Fedora 8 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update php'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F8/FEDORA-2008-3864

Comment 7 Fedora Update System 2008-06-20 19:08:24 UTC

php-5.2.6-2.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Vincent Danen 2010-12-22 23:18:24 UTC

This was addressed via:

Red Hat Application Stack v2 for Enterprise Linux (v.5) RHSA-2008:0505)
Red Hat Enterprise Linux version 3 (RHSA-2008:0544)
Red Hat Enterprise Linux version 5 (RHSA-2008:0544)
Red Hat Enterprise Linux version 4 (RHSA-2008:0545)
Red Hat Enterprise Linux version 2.1 (RHSA-2008:0546)
Red Hat Application Stack v1 for Enterprise Linux AS (v.4) (RHSA-2008:0582)