GLSA 200511-08: PHP: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	PHP: Multiple vulnerabilities
Date:	11/13/2005
Bugs:	#107602, #111032
ID:	200511-08

Synopsis

PHP suffers from multiple issues, resulting in security functions bypass, local Denial of service, cross-site scripting or PHP variables overwrite.

Background

PHP is a general-purpose scripting language widely used to develop web-based applications. It can run inside a web server using the mod_php module or the CGI version and also stand-alone in a CLI.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-php/php	< 4.4.0-r4	>= 4.3.11-r4	All supported architectures
dev-php/mod_php	< 4.4.0-r8	>= 4.3.11-r4	All supported architectures
dev-php/php-cgi	< 4.4.0-r5	>= 4.3.11-r5	All supported architectures

Description

Multiple vulnerabilities have been found and fixed in PHP:

a possible $GLOBALS variable overwrite problem through file upload handling, extract() and import_request_variables() (CVE-2005-3390)
a local Denial of Service through the use of the session.save_path option (CVE-2005-3319)
an issue with trailing slashes in allowed basedirs (CVE-2005-3054)
an issue with calling virtual() on Apache 2, allowing to bypass safe_mode and open_basedir restrictions (CVE-2005-3392)
a problem when a request was terminated due to memory_limit constraints during certain parse_str() calls (CVE-2005-3389)
The curl and gd modules allowed to bypass the safe mode open_basedir restrictions (CVE-2005-3391)
a cross-site scripting (XSS) vulnerability in phpinfo() (CVE-2005-3388)

Impact

Attackers could leverage these issues to exploit applications that are assumed to be secure through the use of proper register_globals, safe_mode or open_basedir parameters. Remote attackers could also conduct cross-site scripting attacks if a page calling phpinfo() was available. Finally, a local attacker could cause a local Denial of Service using malicious session.save_path options.

Workaround

There is no known workaround that would solve all issues at this time.

Resolution

All PHP users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose dev-php/php

All mod_php users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose dev-php/mod_php

All php-cgi users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose dev-php/php-cgi

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200511-08.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.