Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | 4.3.0 |
Related Weaknesses (CWE)
References
- http://archives.neohapsis.com/archives/fulldisclosure/2008-12/0477.html
- http://bugs.php.net/bug.php?id=45722Exploit
- http://cvs.php.net/viewvc.cgi/php-src/ext/mbstring/libmbfl/filters/mbfilter_htmlExploit
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02029444
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html
- http://marc.info/?l=bugtraq&m=124654546101607&w=2
- http://marc.info/?l=bugtraq&m=125631037611762&w=2
- http://secunia.com/advisories/34642
- http://secunia.com/advisories/35003
- http://secunia.com/advisories/35074
- http://secunia.com/advisories/35306
- http://secunia.com/advisories/35650
- http://securitytracker.com/id?1021482
FAQ
What is CVE-2008-5557?
CVE-2008-5557 is a vulnerability with a CVSS score of 10.0 (HIGH). 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 cr...
How severe is CVE-2008-5557?
CVE-2008-5557 has been rated HIGH with a CVSS base score of 10.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2008-5557?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php.