Bug 306821 (CVE-2007-3294)

Summary:	CVE-2007-3294 php tidy extension buffer overflow
Product:	[Other] Security Response	Reporter:	Tomas Hoger <thoger>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jorton
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-3294
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-09-26 15:48:58 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 Tomas Hoger 2007-09-26 12:13:22 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2007-3294 to the following vulnerability:

Multiple buffer overflows in libtidy, as used in the Tidy extension for PHP 5.2.3 and possibly other products, allow context-dependent attackers to execute arbitrary code via (1) a long second argument to the tidy_parse_string function or (2) an unspecified vector to the tidy_repair_string function.  NOTE: this might only be an issue in environments where vsnprintf is implemented as a wrapper for vsprintf.

References:

http://www.milw0rm.com/exploits/4080
http://secunia.com/advisories/25735
http://xforce.iss.net/xforce/xfdb/34931

Comment 1 Tomas Hoger 2007-09-26 12:19:17 UTC

This issue does not affect php as shipped in Red Hat Enterprise Linux 2.1, 3, 4,
or 5, as those packages are not built with libtidy support.

Comment 2 Tomas Hoger 2007-09-26 15:48:58 UTC

php-tidy in Fedora does not demonstrate any problems with large arguments passed
to tidy functions.