X xrdb Input Validation Flaw in Processing Hostname Lets Remote Users Execute Arbitrary Commands
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SecurityTracker Alert ID: 1025317 |
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SecurityTracker URL: http://securitytracker.com/id/1025317
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CVE Reference:
CVE-2011-0465
(Links to External Site)
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Date: Apr 12 2011
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Impact:
Execution of arbitrary code via network, Root access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): X11R7.6 (xrdb prior to 1.0.9)
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Description:
A vulnerability was reported in X. A remote user can execute arbitrary commands on the target system.
A remote user can send specially crafted hostname values (containing shell escape characters) to the target system to execute arbitrary commands on the target system with root privileges when a display manager reads in the resource database via xrdb.
Systems that set their hostname via DHCP are affected (if the dhcp client permits hostnames with illegal characters).
Systems that allow remote logins via xdmcp are affected.
Sebastian Krahmer from the SUSE security team reported this vulnerability.
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Impact:
A remote user can execute arbitrary commands with root privileges on the target system.
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Solution:
The vendor has issued a fix (xrdb-1.0.9).
The vendor's advisory is available at:
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001636.html
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Vendor URL: x.org/ (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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