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X.org X11 Composite Pixmap Privilege Escalation Vulnerability
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Secunia Advisory:
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SA26743
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Release Date:
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2007-09-10
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Popularity:
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7,847 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | X Window System 11 (X11) 7.x
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| CVE reference: | CVE-2007-4730
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Description:
A vulnerability has been reported in X.org X11, which potentially can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to a boundary error within the composite extension when copying data from pixmaps with different bit depths. This can be exploited to cause a buffer overflow by copying data between specially crafted pixmaps.
The vulnerability is reported in xorg-server prior to version 1.4. Other versions may also be affected.
Solution:
Update to xorg-server 1.4.
Provided and/or discovered by:
Reported in a bug by Aaron Plattner.
Original Advisory:
http://lists.freedesktop.org/archives/xorg-announce/2007-September/000378.html
http://bugs.freedesktop.org/show_bug.cgi?id=7447
Other References:
http://lists.debian.org/debian-securi...-security-announce-2007/msg00134.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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