Bug 80354

Summary:	[crash] Path MTU discovery ICMP NATD BSD 6.0 crash
Product:	Base System	Reporter:	realsight <realsight>
Component:	kern	Assignee:	Andre Oppermann <andre>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	Unspecified
Hardware:	Any
OS:	Any

Description realsight 2005-04-26 09:00:34 UTC

after sending serval icmp malfromed packets related to Path MTU discovery
attack freebsd crashes due the fact of consuming large amounts of cpu and
memory resources, tested as an throughput of NATD 

related infos:
http://www.gont.com.ar/drafts/icmp-attacks-against-tcp.html

da
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Comment 1 Andre Oppermann freebsd_committer

2005-08-22 13:24:10 UTC

Responsible Changed
From-To: freebsd-bugs->andre

realsight, 

do you have a backtrace or the program to generate these malformed 
packets? 

--  
Andre

Comment 2 Andre Oppermann freebsd_committer

2005-09-14 16:08:52 UTC

State Changed
From-To: open->suspended

Submitter did not respond to questions for more details.  Could not 
reproduce issue.

Comment 3 Andre Oppermann freebsd_committer

2006-02-18 16:38:16 UTC

State Changed
From-To: suspended->closed

Submittor never gave more detailed information.  Unable to reproduce 
issue.