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CVE-2008-5557

Published: 23 December 2008

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.

Notes

AuthorNote
mdeslaur
reproducer in php.net bug

Priority

Medium

Status

Package Release Status
php4
Launchpad, Ubuntu, Debian
dapper Ignored
(end of life)
gutsy Does not exist

hardy Does not exist

intrepid Does not exist

jaunty Does not exist

karmic Does not exist

upstream Needs triage

php5
Launchpad, Ubuntu, Debian
dapper
Released (5.1.2-1ubuntu3.13)
gutsy
Released (5.2.3-1ubuntu6.5)
hardy
Released (5.2.4-2ubuntu5.5)
intrepid
Released (5.2.6-2ubuntu4.1)
jaunty Not vulnerable
(5.2.6.dfsg.1-3ubuntu2)
karmic Not vulnerable
(5.2.6.dfsg.1-3ubuntu2)
upstream
Released (5.2.6.dfsg.1-1)
Patches:
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