oss-security - CVE Request: xorg-server and pixman

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Date: Tue, 03 Dec 2013 11:54:42 -0600
From: Jamie Strandboge <jamie@...onical.com>
To: oss-security@...ts.openwall.com
CC: security <security@...ntu.com>, xorg_security@...rg
Subject: CVE Request: xorg-server and pixman

Hi,

This bug has been public since August but I could find a CVE for it:
https://launchpad.net/bugs/1197921

There are two bugs - Xorg can be made to crash and pixman can trigger the
aformentioned Xorg crash. A simplified reproducer is in the pixman patches with
another reproducer in the Launchpad bug. The xorg

xorg-server - exa: only draw valid trapezoids
The patch was submitted in October but doesn't seem to be applied yet, so I'm
CC'ing xorg_security. Patch references the pixman f.d.o bug, but doesn't seem to
have an associated xorg bug.
http://patchwork.freedesktop.org/patch/14769/
http://lists.x.org/archives/xorg-devel/2013-October/037996.html

Pixman - Corrupted CustomShape crashes Xorg
https://bugs.freedesktop.org/show_bug.cgi?id=67484
Patch:
 - 5e14da97f16e421d084a9e735be21b1025150f0c (fix)
 - 2f876cf86718d3dd9b3b04ae9552530edafe58a1 (test case)

Thanks!

-- 
Jamie Strandboge                 http://www.ubuntu.com/

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