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Last updated: 10/1/2014 2:30:08 AM

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Vulnerability Workload Index: 11.17
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National Cyber Awareness System

Vulnerability Summary for CVE-2008-5557

Original release date: 12/23/2008
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0 through 5.2.6 allows context-dependent attackers to execute arbitrary code via a crafted string containing an HTML entity, which is not properly handled during Unicode conversion, related to the (1) mb_convert_encoding, (2) mb_check_encoding, (3) mb_convert_variables, and (4) mb_parse_str functions.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 10.0 (HIGH) (AV:N/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: SECUNIA
Name: 35074
External Source: OVAL
Name: oval:org.mitre.oval:def:10286
External Source: FEDORA
Name: FEDORA-2009-3848
External Source: CONFIRM
Name: http://support.apple.com/kb/HT3549
External Source: HP
Name: HPSBMA02492
External Source: SUSE
Name: SUSE-SR:2009:004
External Source: CONFIRM
Name: http://cvs.php.net/viewvc.cgi/php-src/ext/mbstring/libmbfl/filters/mbfilter_htmlent.c?r1=1.7&r2=1.8
External Source: HP
Name: SSRT100079
External Source: SECUNIA
Name: 35650
External Source: HP
Name: SSRT090192
External Source: CONFIRM
Name: http://www.php.net/ChangeLog-5.php#5.2.7
External Source: APPLE
Name: APPLE-SA-2009-05-12
External Source: MANDRIVA
Name: MDVSA-2009:045
External Source: REDHAT
Name: RHSA-2009:0350
External Source: BUGTRAQ
Name: 20090302 rPSA-2009-0035-1 php php-cgi php-imap php-mcrypt php-mysql php-mysqli php-pgsql php-soap php-xsl php5 php5-cgi php5-imap php5-mcrypt php5-mysql php5-mysqli php5-pear php5-pgsql php5-soap php5-xsl
External Source: HP
Name: HPSBUX02465
External Source: CONFIRM
Name: http://bugs.php.net/bug.php?id=45722
External Source: FEDORA
Name: FEDORA-2009-3768
External Source: SUSE
Name: SUSE-SR:2009:008
External Source: CONFIRM
Name: http://wiki.rpath.com/Advisories:rPSA-2009-0035
External Source: SECUNIA
Name: 35306
External Source: VUPEN
Name: ADV-2009-1297
External Source: SECUNIA
Name: 34642
External Source: HP
Name: SSRT090085
External Source: BID
Name: 32948
External Source: SECUNIA
Name: 35003
External Source: FULLDISC
Name: 20081221 CVE-2008-5557 - PHP mbstring buffer overflow
External Source: XF
Name: php-multibyte-bo(47525)
External Source: HP
Name: HPSBUX02431
External Source: DEBIAN
Name: DSA-1789
US-CERT Vulnerability Note: CERT
Name: TA09-133A
External Source: SECTRACK
Name: 1021482

References to Check Content

Identifier: oval:org.mitre.oval:def:10286
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)