CVE-2008-5557

Publication date 23 December 2008

Last updated 24 July 2024

Ubuntu priority

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
php4	9.10 karmic	Not in release
	9.04 jaunty	Not in release
	8.10 intrepid	Not in release
	8.04 LTS hardy	Not in release
	7.10 gutsy	Not in release
	6.06 LTS dapper	Ignored end of life
php5	9.10 karmic	Not affected
	9.04 jaunty	Not affected
	8.10 intrepid	Fixed 5.2.6-2ubuntu4.1
	8.04 LTS hardy	Fixed 5.2.4-2ubuntu5.5
	7.10 gutsy	Fixed 5.2.3-1ubuntu6.5
	6.06 LTS dapper	Fixed 5.1.2-1ubuntu3.13

Notes

mdeslaur

reproducer in php.net bug

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
php5	Vendor: http://patch-tracking.debian.net/patch/series/view/php5/5.2.6.dfsg.1-2/CVE-2008-5557.patch Upstream: http://cvs.php.net/viewvc.cgi/php-src/ext/mbstring/libmbfl/filters/mbfilter_htmlent.c?hideattic=0&r1=1.7&r2=1.8

References

Related Ubuntu Security Notices (USN)