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Date: Fri, 18 May 2001 11:13:10 -0700 (PDT)
From: VAleks@au.ru
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Subject: i386/27434: TCP/IP Stack leak on proxy-like programms
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>Number:         27434
>Category:       i386
>Synopsis:       TCP/IP Stack leak on proxy-like programms
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri May 18 11:20:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Alekseev Valentin A.
>Release:        4.3-RELEASE
>Organization:
School #56
>Environment:
FreeBSD ns.school56.spb.ru 4.3-RELEASE FreeBSD 4.3-RELEASE #0: Sat Apr 21 10:54:49 GMT 2001     jkh@narf.osd.bsdi.com:/usr/src/sys/compile/GENERIC  i386
>Description:
After installing new FreeBSD REL (old was 4.2RC1) I've got a problem with task such as squid & delegate (acts as web, ftp, socks proxies)
- when all setting are done & I request data from local net through proxy both squid or delgate I've got a program fault. Squid simply restart it thread. Delegate fails off completly. Here is the network configuration:
--<cut here>--
dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 195.209.225.34 netmask 0xfffffff0 broadcast 195.209.225.47
	inet6 fe80::280:48ff:fefb:1fd6%dc0 prefixlen 64 scopeid 0x1 
	ether 00:80:48:fb:1f:d6 
	media: autoselect (10baseT/UTP) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP none
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 192.168.56.1 netmask 0xffffff00 broadcast 192.168.56.255
	inet6 fe80::260:8ff:fe2f:db2f%xl0 prefixlen 64 scopeid 0x2 
	ether 00:60:08:2f:db:2f 
	media: autoselect (100baseTX <full-duplex>) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback>
--<end cut>--
All routes are static. Any net application running from box (ftp, lynx) is going ok. I can nslookup FQDN, trace to destination etc.
Squid versions tested: 2.4STABLE1, 2.3STABLE4
Delegate versions tested: 6.1.21
>How-To-Repeat:
Install clean FreeBSD (burned from ISO).
Setup network.
Install squid or delegate.
Configure proxies.
Request data from local to global nets.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:

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