oss-sec mailing list archives

Re: Re: CVE Request (pidgin)


From: Robert Buchholz <rbu () gentoo org>
Date: Fri, 4 Jul 2008 00:03:44 +0200

On Thursday 03 July 2008, Josh Bressers wrote:
On 3 July 2008, Nico Golde wrote:
Name: CVE-2008-2955


Pidgin 2.4.1 allows remote attackers to cause a denial of service
(crash) via a long filename that contains certain characters, as
demonstrated using an MSN message that triggers the crash in the
msn_slplink_process_msg function.

Did anyone try if this can be done by some random user=20
without authorization and if the victim needs to accept the=20
file first to trigger this?

My testing showed that random users can't send files, they need to be
in your buddy list.  I'm not sure if the victim needs to accept the
file or not.  Last I knew, upstream was still working on this one.

Our maintainer digged out these changes that are in the newly released 
2.4.3:

http://developer.pidgin.im/viewmtn/revision/diff/6eb1949a96fa80a4c744fc749c2562abc4cc9ed6/with/c3831c9181f4f61b747321240086ee79e4a08fd8/libpurple/protocols/msn/slplink.c
http://developer.pidgin.im/viewmtn/revision/diff/6eb1949a96fa80a4c744fc749c2562abc4cc9ed6/with/c3831c9181f4f61b747321240086ee79e4a08fd8/libpurple/protocols/msnp9/slplink.c

Are they incomplete?


Robert


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