REDHAT-BUG-642642

First published: Wed Oct 13 2010(Updated: )

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 <a href="https://access.redhat.com/security/cve/CVE-2010-2251">CVE-2010-2251</a>, <a href="https://access.redhat.com/security/cve/CVE-2010-2252">CVE-2010-2252</a> and <a href="https://access.redhat.com/security/cve/CVE-2010-2253">CVE-2010-2253</a>. 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] <a href="http://curl.haxx.se/docs/security.html">http://curl.haxx.se/docs/security.html</a> [2] <a href="http://curl.haxx.se/docs/adv_20101013.html">http://curl.haxx.se/docs/adv_20101013.html</a> Upstream patch: [3] <a href="http://curl.haxx.se/curl-content-disposition.patch">http://curl.haxx.se/curl-content-disposition.patch</a> Credit: Upstream acknowledges Dan Fandrich as the original reporter.

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