__________________________________________________________
	
	                       The U.S. Department of Energy
	                   Computer Incident Advisory Capability
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	             __________________________________________________________
	
	                             INFORMATION BULLETIN
	
	                              Snort 2.4.3 Released
	                                 [2005-10-17]
	
	October 18, 2005 13:00 GMT                                        Number Q-022
	______________________________________________________________________________
	PROBLEM:       Snort (both Open Source and paid versions) have a stack-based 
	               buffer overflow vulnerability in its Back Orifice preprocessor. 
	PLATFORM:      Certain versions before Snort 2.4.3. 
	DAMAGE:        An attacker can enclose malicious data in Back Orifice-type 
	               traffic in an attempt to the execute arbitrary code. 
	SOLUTION:      Upgrade to the appropriate version. See the Snort downloads 
	               page at http://www.snort.org/dl/ for the 2.4.3 Release Notes. 
	______________________________________________________________________________
	VULNERABILITY  The risk is MEDIUM. An attacker can enclose malicious data in 
	ASSESSMENT:    Back Orifice-type traffic in an attempt to the execute 
	               arbitrary code. 
	______________________________________________________________________________
	LINKS: 
	 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/q-022.shtml 
	 ORIGINAL BULLETIN:  Snort 2005-10-17                                                         
	                     http://www.snort.org/docs/release_notes/release_notes_243.txt 
	______________________________________________________________________________
	[***** Start 2005-10-17  *****]
	
	2005-10-17 - Snort 2.4.3 Released
	[*] Improvements
	    * Fixed possible buffer overflow in  back orifice preprocessor.
	    * Added snort.conf options to bo preprocessor for finer control of 
	      alerting and dropping of bo traffic.
	    * Added alert to detect the bo buffer overflow attack against snort.
	
	
	[***** End 2005-10-17  *****]
	_______________________________________________________________________________
	
	CIAC wishes to acknowledge the contributions of Snort for the 
	information contained in this bulletin.
	_______________________________________________________________________________
	
	
	CIAC, the Computer Incident Advisory Capability, is the computer
	security incident response team for the U.S. Department of Energy
	(DOE) and the emergency backup response team for the National
	Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
	National Laboratory in Livermore, California. CIAC is also a founding
	member of FIRST, the Forum of Incident Response and Security Teams, a
	global organization established to foster cooperation and coordination
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