GLSA-200412-14 : PHP: Multiple vulnerabilities

Critical Nessus Plugin ID 16001


The remote Gentoo host is missing one or more security-related patches.


The remote host is affected by the vulnerability described in GLSA-200412-14 (PHP: Multiple vulnerabilities)

Stefan Esser and Marcus Boerger reported several different issues in the unserialize() function, including serious exploitable bugs in the way it handles negative references (CAN-2004-1019).
Stefan Esser also discovered that the pack() and unpack() functions are subject to integer overflows that can lead to a heap buffer overflow and a heap information leak. Finally, he found that the way multithreaded PHP handles safe_mode_exec_dir restrictions can be bypassed, and that various path truncation issues also allow to bypass path and safe_mode restrictions.
Ilia Alshanetsky found a stack overflow issue in the exif_read_data() function (CAN-2004-1065). Finally, Daniel Fabian found that addslashes and magic_quotes_gpc do not properly escape null characters and that magic_quotes_gpc contains a bug that could lead to one level directory traversal.
Impact :

These issues could be exploited by a remote attacker to retrieve web server heap information, bypass safe_mode or path restrictions and potentially execute arbitrary code with the rights of the web server running a PHP application.
Workaround :

There is no known workaround at this time.


All PHP users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-php/php-4.3.10' All mod_php users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-php/mod_php-4.3.10' All php-cgi users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-php/php-cgi-4.3.10'

See Also

Plugin Details

Severity: Critical

ID: 16001

File Name: gentoo_GLSA-200412-14.nasl

Version: 1.18

Type: local

Published: 2004/12/19

Updated: 2018/12/18

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.8

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:mod_php, p-cpe:/a:gentoo:linux:php, p-cpe:/a:gentoo:linux:php-cgi, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2004/12/19

Reference Information

CVE: CVE-2004-1019, CVE-2004-1020, CVE-2004-1063, CVE-2004-1064, CVE-2004-1065

GLSA: 200412-14

CWE: 20