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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200412-14] PHP: Multiple vulnerabilities


Vulnerability Assessment Details

[GLSA-200412-14] PHP: Multiple vulnerabilities

Vulnerability Assessment Summary
PHP: Multiple vulnerabilities

Detailed Explanation for this Vulnerability Assessment
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 (CVE-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 permit to bypass
path and safe_mode restrictions.
Ilia Alshanetsky found a
stack overflow issue in the exif_read_data() function (CVE-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.

References:
http://www.php.net/release_4_3_10.php
http://www.hardened-php.net/advisories/012004.txt
http://www.securityfocus.com/archive/1/384663/2004-12-15/2004-12-21/0
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1019
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1065


Solution:
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"


Network Security Threat Level: High


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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