Date: Mon, 23 Nov 2009 14:51:28 -0500 (EST) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: Thomas Biege <thomas@...e.de>, coley <coley@...re.org> Subject: Re: CVE request: php 5.3.1 - "max_file_uploads" [was: Re: CVE request: php 5.3.1 update] CVE-2009-4017 PHP versions before 5.3.1 contain a flow in the way multipart/form-data handled file upload requests. A user making a specially crafted request could cause the web server to consume resources processing the request. http://www.php.net/releases/5_3_1.php http://marc.info/?l=full-disclosure&m=125871907031725&w=2 Thanks. -- JB ----- "Jan Lieskovsky" <jlieskov@...hat.com> wrote: > Eren Türkay wrote: > > On Friday 20 November 2009 12:41:50 pm Thomas Biege wrote: > >> * Added "max_file_uploads" INI directive, which can be set to limit > the > >> number of file uploads per-request to 20 by default, to prevent > possible > >> DOS via temporary file exhaustion. > > > > Bogdan Calin disclosed the details about that vulnerability on > full-disclosure > > mailing list. He didn't disclosed his script but I wrote a PoC that > works like > > a charm. It makes DoS possible for any server that runs PHP within 1 > minute > > with a few requests. > > > > Additionally, this vulnerability affects 5.2.11. I guess all > products before > > PHP 5.3.1 are vulnerable. > > > > I think this deserves CVE Id. Any ideas? > > Josh, could you please allocate one? > > Also changed the topic to match only 'php 5.3.1 - "max_file_uploads"' > thing, > so it isn't lost in other mails. > > Thanks && Regards, Jan. > -- > Jan iankko Lieskovsky / Red Hat Security Response Team
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