Bug 445006 (CVE-2008-2051)

Summary:	CVE-2008-2051 PHP multibyte shell escape flaw
Product:	[Other] Security Response	Reporter:	Josh Bressers <bressers>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	jorton, jrusnack, kreilly
Target Milestone:	---	Keywords:	Reopened, Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	5.2.6-2.fc9	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-03-29 09:46:33 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 Josh Bressers 2008-05-02 18:04:07 UTC

From the PHP 5.2.6 changelog:
* Properly address incomplete multibyte chars inside escapeshellcmd() identified
by Stefan Esser.

The fix for this is here:
http://cvs.php.net/viewvc.cgi/php-src/ext/standard/exec.c?r1=1.113.2.3.2.1.2.3&r2=1.113.2.3.2.1.2.4&diff_format=u

Comment 2 Joe Orton 2008-05-06 13:14:34 UTC

This issue is exploitable if you have a script which:

1) passes untrusted script input to escapeshellcmd (as is the intended use for
that function)

2) runs a shell script using the output from (1) in a "strange" locale.

This does not seem to be exploitable in UTF-8 locales on Linux.  Based on this
analysis I would say rate this Moderate severity.

Comment 3 Tomas Hoger 2008-05-07 11:13:59 UTC

Further detail can be found in Stefan Esser's advisory:

http://www.sektioneins.de/advisories/SE-2008-03.txt

Comment 10 Fedora Update System 2008-06-14 04:19:43 UTC

php-5.2.6-2.fc9 has been pushed to the Fedora 9 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/F9/FEDORA-2008-3606

Comment 11 Fedora Update System 2008-06-20 19:08:22 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 12 Fedora Update System 2008-06-20 19:09:21 UTC

php-5.2.6-2.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 14 Tomas Hoger 2010-03-29 09:46:33 UTC

https://www.redhat.com/security/data/cve/CVE-2008-2051.html