(HP Issues Fix) X Server Bugs in XFree86, Xinput, TOG-CUP, MIT-SHM, and EVI Extensions Let Local Users Gain Root Privileges
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SecurityTracker Alert ID: 1021134 |
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SecurityTracker URL: http://securitytracker.com/id/1021134
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CVE Reference:
CVE-2007-5958, CVE-2007-6427, CVE-2007-6429, CVE-2008-0006
(Links to External Site)
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Date: Nov 4 2008
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Impact:
Disclosure of system information, Disclosure of user information, Root access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 7.3
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Description:
Several vulnerabilities were reported in X. A local user can obtain root privileges on the target system. A local user can determine whether certain files or directories exist on the target system.
A local user can exploit any of several memory corruption errors in the X server to execute arbitrary code with the privileges of the target X server (typically root level privileges).
A local user can supply a specially PassMessage request to cause an out-of-bounds array index error and trigger a pointer dereference in the XFree86 Misc extension [CVE-2007-5760].
A local user can supply a certain type of command ('X :1 -sp <file>') specifying an arbitrary file or directory to identify whether the specified file exists in access-restricted directories based on the error message returned by the system [CVE-2007-5958].
A local user can trigger a heap corruption error in the Xinput extension [CVE-2007-6427].
A local user can read arbitrary memory contents by exploiting the ProcGetReservedColormapEntries() function in the TOG-CUP extension [CVE-2007-6428].
A local user can supply a specially crafted request to trigger an integer overflow in the pixmap creation process in the MIT-SHM and EVI extensions [CVE-2007-6429].
A local user can supply a specially crafted PCF font to trigger a buffer overflow [CVE-2008-0006].
regenrecht reported CVE-2007-5760, CVE-2007-6427, CVE-2007-6428, and CVE-2007-6429 via iDefense. Takuya Shiozaki of CodeBlog reported CVE-2008-0006. An anonymous researcher reported CVE-2007-5859.
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Impact:
A local user can obtain root privileges on the target system.
A local user can determine whether files or directories exist on the target system.
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Solution:
HP has issued a fix for CVE-2007-5958, CVE-2007-6427, CVE-2007-6429, and CVE-2008-0006 for HP-UX.
The HP advisory is available at:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01543321
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Vendor URL: lists.freedesktop.org/archives/xorg/2008-January/031918.html (Links to External Site)
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Cause:
Access control error, Boundary error
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Underlying OS:
UNIX (HP/UX)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Tue, 4 Nov 2008 08:28:28 -0500
Subject: HPSBUX02381 SSRT080083 rev.1 - HP-UX Running Xserver, Remote Execution of Arbitrary Code
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http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01543321
CVE-2007-5958, CVE-2007-6427, CVE-2007-6429, CVE-2008-0006, CVE-2008-1377, CVE-2008-1379
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