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CVE-2012-1172

Published: 23 May 2012

The file-upload implementation in rfc1867.c in PHP before 5.4.0 does not properly handle invalid [ (open square bracket) characters in name values, which makes it easier for remote attackers to cause a denial of service (malformed $_FILES indexes) or conduct directory traversal attacks during multi-file uploads by leveraging a script that lacks its own filename restrictions.

Notes

AuthorNote
jdstrand
some argue bug is in script, not the language, but PHP does try
to sanitize $_FILES. Script writers may be relying on that.

Priority

Low

Status

Package Release Status
php5
Launchpad, Ubuntu, Debian
hardy
Released (5.2.4-2ubuntu5.25)
lucid
Released (5.3.2-1ubuntu4.17)
maverick Ignored
(end of life)
natty
Released (5.3.5-1ubuntu7.10)
oneiric
Released (5.3.6-13ubuntu3.8)
precise
Released (5.3.10-1ubuntu3.2)
upstream
Released (5.3.11,5.4.0)
Patches:
upstream: http://svn.php.net/viewvc?view=revision&revision=321664 (trunk)
upstream: http://git.php.net/?p=php-src.git;a=commit;h=95dcd799fb6fdccbc60d3bba3cd759f6b421ee69 (5.3)
upstream: http://git.php.net/?p=php-src.git;a=commit;h=baeaafd3951451c7dadf949c7677e90141c1e17a (5.3 test)