S-123: xorg-x11-server Security Update

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01-22-2008

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S-123: xorg-x11-server Security Update

There are several security issues in xorg-x11-server: 1) two integer overflow flaws; 2) a memory corruption flaw; 3) an input validation flaw; 4) an information disclosure flaw; and 5) a flaw was found in the X.Org server's XC-SECURITY extension. The risk is MEDIUM. A malicious authorized client could exploit this issue to cause a denial of service (crash), or potentially execute arbitrary code with root privileges on the X.Org server.

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uep

UEP(4)							   BSD Kernel Interfaces Manual 						    UEP(4)

NAME

     uep -- eGalax touchscreen driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines into your kernel configuration file:

	   device uep
	   device usb

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   uep_load="YES"

DESCRIPTION

     The uep driver provides support for the eGalax onscreen touch panels.

     The driver is stub.  It just probes and attaches to USB device, creates device entry and feeds reassambled packets from the hardware to it.

     To get mouse working in X(7), one needs to install ports/x11-drivers/xf86-input-egalax.

BUGS

     uep can't act like sysmouse(4), since the latter does not support absolute motion events.

FILES

     uep creates a blocking pseudo-device file, /dev/uep0.

SEE ALSO

     usb(4), loader.conf(5), xorg.conf(5) (ports/x11/xorg), egalax(4) (ports/x11-drivers/xf86-input-egalax).

AUTHORS

     The uep driver was written by Gleb Smirnoff <glebius@FreeBSD.org>

BSD
								   May 25, 2010 							       BSD

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