oss-security - CVE-2010-3080 kernel: /dev/sequencer open failure is not handled correctly

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Message-ID: <4C874E7C.5070904@redhat.com>
Date: Wed, 08 Sep 2010 16:51:08 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>
Subject: CVE-2010-3080 kernel: /dev/sequencer open failure is not handled
 correctly

Reported by Tavis Ormandy. There's a bug in snd_seq_oss_open from 
sound/core/seq/oss/seq_oss_init.c that can result in dereferencing of a 
released pointer. On some distros like Red Hat Enterprise Linux 5, 
/dev/sequencer is restricted to root owner only. On others like Fedora 
13, it cannot be accessed by a local, unprivileged user unless someone 
logs in from the console on his/her behalf.

https://bugzilla.redhat.com/CVE-2010-3080
http://git.kernel.org/?p=linux/kernel/git/tiwai/sound-2.6.git;a=commitdiff;h=c598337660c21c0afaa9df5a65bb4a7a0cf15be8

Thanks, Eugene
-- 
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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