oss-security - Re: CVE Request -- cURL / mingw32-cURL -- Did not strip directory parts separated by backslashes, when downloading files

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <686600886.443491286996310869.JavaMail.root@zmail01.collab.prod.int.phx2.redhat.com>
Date: Wed, 13 Oct 2010 14:58:30 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: Daniel Stenberg <daniel@...x.se>,
        "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE Request -- cURL / mingw32-cURL -- Did not
 strip directory parts separated by backslashes, when downloading files

Please use CVE-2010-3842

Thanks.

-- 
    JB


----- "Jan Lieskovsky" <jlieskov@...hat.com> wrote:

> Hello Steve, vendors,
> 
>    cURL upstream has released new curl / libcurl v7.21.2 addressing
> one security flaw,
> specific for operating systems, where backslashes are used to separate
> directories from
> file names. More details follow:
> 
> cURL did not properly cut off directory parts from user provided
> file name to be downloaded on operating systems, where backslashes
> are used to separate directories and file names. This could allow
> remote servers to create or overwrite files via a Content-Disposition
> header that suggests a crafted filename, and possibly execute
> arbitrary
> code as a consequence of writing to a certain file in a user's home
> directory. Different vulnerability than CVE-2010-2251, CVE-2010-2252
> and CVE-2010-2253.
> 
> Note: As already mentioned in [2]. This flaw only affected those
>        operating systems, where backslash is used to separate
> directories
>        and file names, thus Microsoft Windows, Novell Netware, MSDOS,
> OS/2
>        and Symbian to mention some of them.
> 
> References:
> [1] http://curl.haxx.se/docs/security.html
> [2] http://curl.haxx.se/docs/adv_20101013.html
> 
> Upstream patch:
> [3] http://curl.haxx.se/curl-content-disposition.patch
> 
> Credit: Upstream acknowledges Dan Fandrich as the original reporter.
> 
> Red Hat Bugzilla tracking system record:
> [4] https://bugzilla.redhat.com/show_bug.cgi?id=642642
> 
> Could you please allocate a CVE id for this issue?
> 
> Thanks && Regards, Jan.
> --
> Jan iankko Lieskovsky / Red Hat Security Response Team

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.