Wireshark-bugs: [Wireshark-bugs] [Bug 7359] SNMP dissector bug: STATUS_INTEGER_DIVIDE_BY_ZERO

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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 30 Apr 2013 15:24:11 +0000

Comment # 6 on bug 7359 from 
(In reply to comment #5)
> Tested on 1.8.6, Windows 7 64, no _DIVIDE_BY_ZERO, no malformed packets. 
> Can this be closed?

With a customized 1.8.6, when I run "tshark.exe -r snmp_usm.pcap". I still see
many of these:

** (tshark.exe:6352): WARNING **: Dissector bug, protocol SNMP, in packet 3:
STA
TUS_INTEGER_DIVIDE_BY_ZERO: dissector tried an integer division by zero
  3   0.001330    127.0.0.1 -> 127.0.0.1    SNMP 212 Source port: 50399 
Destina
tion port: snmp [UDP CHECKSUM INCORRECT][Dissector bug, protocol SNMP:
STATUS_IN
TEGER_DIVIDE_BY_ZERO: dissector tried an integer division by zero]

If nobody else can reproduce this, then I'll try a stock 1.8 release if I ever
get a chance.

But, with SVN r49098, I get lots of the following (basically 1 for every
packet):

** (tshark.exe:3668): WARNING **: Dissector bug, protocol SNMP, in packet 1:
pro
to.c:6200: failed assertion "(guint)n < gpa_hfinfo.len" (Unregistered hf!)
  1   0.000000    127.0.0.1 -> 127.0.0.1    UDP 109   Source port: 50399 
Destin
ation port: snmp [UDP CHECKSUM INCORRECT][Dissector bug, protocol SNMP:
proto.c:
6200: failed assertion "(guint)n < gpa_hfinfo.len" (Unregistered hf!)]

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