RHEL 2.1 : php (RHSA-2004:395)

Medium Nessus Plugin ID 13652


The remote Red Hat host is missing one or more security updates.


Updated php packages that fix various security issues are now available.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP server.

Stefan Esser discovered a flaw when memory_limit configuration setting is enabled in versions of PHP 4 before 4.3.8. If a remote attacker could force the PHP interpreter to allocate more memory than the memory_limit setting before script execution begins, then the attacker may be able to supply the contents of a PHP hash table remotely. This hash table could then be used to execute arbitrary code as the 'apache' user. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0594 to this issue.

This issue may be exploitable if using the default PHP configuration with the 'register_globals' setting of 'On'. The Apache memory exhaustion bug, fixed in a previous update to Red Hat Enterprise Linux 3, may also allow this PHP issue to be exploited; this Apache bug does not affect Red Hat Enterprise Linux 2.1.

Stefan Esser discovered a flaw in the strip_tags function in versions of PHP before 4.3.8. The strip_tags function is commonly used by PHP scripts to prevent Cross-Site-Scripting attacks by removing HTML tags from user-supplied form data. By embedding NUL bytes into form data, HTML tags can in some cases be passed intact through the strip_tags function, which may allow a Cross-Site-Scripting attack. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0595 to this issue.

All users of PHP are advised to upgrade to these updated packages, which contain backported patches that address these issues.


Update the affected packages.

See Also




Plugin Details

Severity: Medium

ID: 13652

File Name: redhat-RHSA-2004-395.nasl

Version: $Revision: 1.25 $

Type: local

Agent: unix

Published: 2004/07/19

Modified: 2018/01/16

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:php, p-cpe:/a:redhat:enterprise_linux:php-devel, p-cpe:/a:redhat:enterprise_linux:php-imap, p-cpe:/a:redhat:enterprise_linux:php-ldap, p-cpe:/a:redhat:enterprise_linux:php-manual, p-cpe:/a:redhat:enterprise_linux:php-mysql, p-cpe:/a:redhat:enterprise_linux:php-odbc, p-cpe:/a:redhat:enterprise_linux:php-pgsql, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2004/07/19

Vulnerability Publication Date: 2004/07/13

Exploitable With


Reference Information

CVE: CVE-2004-0594, CVE-2004-0595

OSVDB: 7870, 7871

RHSA: 2004:395