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  • Wireshark FoundationWireshark Foundation
  • wiresharkwireshark
  • Issues
  • #17882
Closed
Open
Issue created Jan 15, 2022 by Sharon Brizinov@sean007Contributor

Wireshark stability - multiple dissector bugs - runtime errors

Summary

This is my naive attempt to fix (hopefully) all of Wireshark dissector runtime errors. In the last few weeks ran fuzzers and wrote some tools to find and disclose security and stability bugs with the sole goal of making Wireshark as stable as possible. I've gathered a decent list of naughty dissectors that are passing NULL pointers to functions when they shouldn't. Obviously this could cause undefined behaviors in runtime and sometimes even crash Wireshark/tshark - runtime error: null pointer passed as argument.

I decided to concentrate everything into a single issue so I won't spam with many "NULL pointer is passed" issues.

To reproduce these issues, one would need to compile tshark with address sanitizers (and specifically UBS - UndefinedBehaviorSanitizer). There are 5 main categories of runtime errors:

  1. NULL pointer passed to bytes_to_str_punct_maxlen()
  2. NULL pointer passed as argument to epan/tvbuff.c:932:17
  3. NULL pointer passed as argument to wsutil/wmem/wmem_array.c:119:63
  4. Store to misaligned address
  5. X is outside the range of representable values of type unsigned int

[Fixed?] Dissector

  • ZigBee-ZCL
  • ACF-LIN
  • ACF-CAN
  • ANSI C12.22
  • SMB2 (SMB3)
  • CIP
  • DTLS
  • LTP
  • SSLv3
  • CSN1 (X2AP)
  • DNS
  • SNMP
  • ENIP
  • Bundle
  • NBAP
  • TCP
  • CoAP
  • IPDC
  • CL-PRES
  • 802.11
  • NFS
  • DCERPC
  • RPC
  • BPv7
  • 5co-legacy
  • 6LoWPAN
  • JXTA

Samples

ZigBee-ZCL (zbee_zcl)

 ** (tshark:66662) 17:07:59.843905 [(none) CRITICAL] wsutil/to_str.c:229 -- bytes_to_str_punct_maxlen(): Null pointer 'src' passed to bytes_to_str_punct_maxlen()
  0.000000     1 00:00:a0:45:df:06:a6:26 → 0x0101       ZigBee  ZCL: Write Attributes No Response, Seq: 10[BoundErrorUnreassembled Packet] 112
  • pcap: zbee_zero_length_passed_to_bytes_to_str_punct_max.pcapng

ACF-LIN

 ** (tshark:66684) 17:08:05.983981 [(none) CRITICAL] wsutil/to_str.c:229 -- bytes_to_str_punct_maxlen(): Null pointer 'src' passed to bytes_to_str_punct_maxlen()
  0.000000     1 00:00:06:66:29:21 → 70:b3:d5:8e:f6:de ACF-LIN ACF-LIN(31): 0xfb   fb fb 116
  • pcap: acf-lin_zero_length_passed_to_bytes_to_str_punct_max.pcapng

ACF-CAN

 ** (tshark:66710) 17:08:15.849287 [(none) CRITICAL] wsutil/to_str.c:229 -- bytes_to_str_punct_maxlen(): Null pointer 'src' passed to bytes_to_str_punct_maxlen()
  0.000000     1 00:00:00:66:29:21 → 70:b3:d5:8e:f6:de ACF-CAN ACF-CAN(4): 0x04040404   7c 50 00 00 01 00 04 04 119
  • pcap: acf-can_zero_length_passed_to_bytes_to_str_punct_max.pcapng

ANSI C12.22

tshark_errors/error/e607ffef414486cb75738d15e41a7fbea057137a.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 ANSI C12.22 169 1153 → 36659 [PSH, CWR, Reserved] Seq=553674532 Win=34952[BoundErrorUnreassembled Packet][BoundErrorUnreassembled Packet][Malformed Packet]
  • pcap: e607ffef414486cb75738d15e41a7fbea057137a.pcap

SMB2 (SMB3)

tshark_errors/error/f85d55d45096d2b94e9794ea7342935770fc70aa.pcap
../wsutil/wmem/wmem_array.c:119:63: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../wsutil/wmem/wmem_array.c:119:63 in 
../epan/tvbuff_lznt1.c:135:10: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff_lznt1.c:135:10 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 SMB2 112 Decomp. SMB3[BoundErrorUnreassembled Packet]


    tshark_errors/error/762ec73eaa1361726383f30fa3e1d6c787c5d9fe.pcap
../wsutil/wmem/wmem_array.c:119:63: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../wsutil/wmem/wmem_array.c:119:63 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 SMB2 120 Comp. SMB3 (unknown)

  • pcap: f85d55d45096d2b94e9794ea7342935770fc70aa.pcap762ec73eaa1361726383f30fa3e1d6c787c5d9fe.pcap

CIP

tshark_errors/error/2a616f06df5882de9dbf1925fa6e3843e14dc078.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 CIP 109 Multiple Service Packet: Start, [BoundErrorUnreassembled Packet][BoundErrorUnreassembled Packet]


tshark_errors/error/a513e0347ba7c4f33abc310247c0644e03fc22ae.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 CIP 108 Service (0x00)
  • pcap: 2a616f06df5882de9dbf1925fa6e3843e14dc078.pcap a513e0347ba7c4f33abc310247c0644e03fc22ae.pcap

DTLS

tshark_errors/error/14041d11455b0a6fdc9a940ff356982be32142dd.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 DTLS 1.0 (OpenSSL pre 0.9.8f) 112 Certificate Request (Fragment), Certificate Request[BoundErrorUnreassembled Packet][BoundErrorUnreassembled Packet]
  • pcap: 14041d11455b0a6fdc9a940ff356982be32142dd.pcap

LTP


tshark_errors/error/1901d52c701302cf5de33c95f652b64e532dade8.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 LTP Segment 101 Protocol Error
  • pcap: 1901d52c701302cf5de33c95f652b64e532dade8.pcap

SSLv3

tshark_errors/error/94be75d690a7301ade3e70769a1f1dbc9a3e3df7.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 SSLv3 124 New Session Ticket, New Session Ticket, End of Early Data, End of Early Data, Continuation Data, Continuation Data

tshark_errors/error/30a018ee7c96129f081ca38dda267cd83139095b.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 SSLv3 124 End of Early Data, New Session Ticket, End of Early Data, End of Early Data, Continuation Data, Continuation Data, Continuation Data
  • pcap: 94be75d690a7301ade3e70769a1f1dbc9a3e3df7.pcap30a018ee7c96129f081ca38dda267cd83139095b.pcap

CSN1 (X2AP)

tshark_errors/error/5da74e09f3d5a3a0af8d8c8a6142bf644217bcc0.pcap
../epan/dissectors/packet-csn1.c:773:17: runtime error: store to misaligned address 0x7f61f9e375b1 for type 'guint16' (aka 'unsigned short'), which requires 2 byte alignment
0x7f61f9e375b1: note: pointer points here
 00 00 00  01 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00
              ^ 
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/dissectors/packet-csn1.c:773:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 X2AP 117 ENDCConfigurationTransfer, MobilityFromEUTRACommand:GPRS DL CTRL: PACKET_SYSTEM_INFO_3:GPRS DL CTRL: PACKET_SYSTEM_INFO_3[Malformed Packet][Malformed Packet][Malformed Packet]

tshark_errors/error/dd7fe5d01f155faebb8021e22a2fa27c9d2b9825.pcap
../epan/dissectors/packet-csn1.c:773:17: runtime error: store to misaligned address 0x7f3861c3ab5d for type 'guint16' (aka 'unsigned short'), which requires 2 byte alignment
0x7f3861c3ab5d: note: pointer points here
 00 00 00 01 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  00
             ^ 
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/dissectors/packet-csn1.c:773:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 X2AP 116 GNBStatusIndication, MobilityFromEUTRACommand[Malformed Packet]:GPRS DL CTRL: PACKET_CELL_CHANGE_ORDER[Malformed Packet][Malformed Packet]
  • pcap: 5da74e09f3d5a3a0af8d8c8a6142bf644217bcc0.pcap dd7fe5d01f155faebb8021e22a2fa27c9d2b9825.pcap

DNS

tshark_errors/error/746d5475691e3bd7b74e7a78ae3cd9491d9f724d.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 DNS 151 Unknown operation (9) 0x0000 HTTPS[BoundErrorUnreassembled Packet]

tshark_errors/error/1d3bb7805e95fba0ae43bc87ec0963acc13a32f4.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 DNS 154 Standard query 0x0267 SVCB[BoundErrorUnreassembled Packet]

  • pcap: 746d5475691e3bd7b74e7a78ae3cd9491d9f724d.pcap1d3bb7805e95fba0ae43bc87ec0963acc13a32f4.pcap

SNMP

tshark_errors/error/42458338bed52e817ef07d6caa391106bf9a3a3e.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 SNMP 126 get-response itu-t
  • pcap: 42458338bed52e817ef07d6caa391106bf9a3a3e.pcap

ENIP


tshark_errors/error/64112d632148396fe46936637ca6e019c40bb53d.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 ENIP 119 Get Attribute List | Unknown Command (0x0232) (Req)[BoundErrorUnreassembled Packet]
  • pcap: 64112d632148396fe46936637ca6e019c40bb53d.pcap

Bundle

tshark_errors/error/88b8ef634bfa18e1ec595a9b0d6382637ce8f827.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 Bundle 106 Protocol Error
  • pcap: 88b8ef634bfa18e1ec595a9b0d6382637ce8f827.pcap

NBAP

tshark_errors/error/f33b37100c1014ebde8859eb17c23021c47ed010.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 NBAP 123 id-cellReconfiguration  (MasterInformationBlock[Malformed Packet][Malformed Packet]
  • pcap: f33b37100c1014ebde8859eb17c23021c47ed010.pcap

TCP

tshark_errors/error/22247efd63b724b44633847393617375d026d315.pcap
../epan/tvbuff.c:2232:35: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:92:34: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:2232:35 in 
    1   0.000000    196.0.0.0 → 0.0.160.158  TCP 129 54051 → 30028 [SYN, PSH, ACK, CWR, Reserved] Seq=0 Ack=1 Win=39578 Len=26


    tshark_errors/error/ea86b73f7579aa746d04ba6d186c52f6497d8f4e.pcap
../epan/tvbuff.c:2232:35: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:92:34: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:2232:35 in 
    1   0.000000      0.0.0.0 → 160.158.211.35 TCP 127 30028 → 28928 [SYN, PSH, ACK, CWR, Reserved] Seq=0 Ack=1 Win=65467 Len=24
  • pcap: 22247efd63b724b44633847393617375d026d315.pcapea86b73f7579aa746d04ba6d186c52f6497d8f4e.pcap

CoAP


tshark_errors/error/feada1a8b3048fd4b263cbfd2c8f4932f77b007e.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 CoAP 143 RST, MID:32667, Unknown 255[BoundErrorUnreassembled Packet]
  • pcap: feada1a8b3048fd4b263cbfd2c8f4932f77b007e.pcap

IPDC

tshark_errors/error/8583c6e8b477b0b8a15e31ac207a02d8abf50200.pcap
../epan/dissectors/packet-ipdc.c:828:25: runtime error: 2.69599e+67 is outside the range of representable values of type 'unsigned int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/dissectors/packet-ipdc.c:828:25 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 IPDC 126 14001 → 6668 [PSH, URG, NS, Reserved] Seq=0 Win=17717 Urg=8960r=0 s=0 TID=f100000f UNDEFINED [BoundErrorUnreassembled Packet]r=0 s=0 TID=ff000006 UNDEFINED [BoundErrorUnreassembled Packet]
  • pcap: 8583c6e8b477b0b8a15e31ac207a02d8abf50200.pcap

CL-PRES


tshark_errors/error/6d96ffe15d77326b3877e1837ba633d3bc2df741.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 CL-PRES 122 [Malformed Packet]
  • pcap: 6d96ffe15d77326b3877e1837ba633d3bc2df741.pcap

802.11

tshark_errors/error/6d9b3270b75a036f6ccff68aed5a863add4084dc.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 802.11 167 PV1 Management[Malformed Packet]
  • pcap: 6d9b3270b75a036f6ccff68aed5a863add4084dc.pcap

NFS


tshark_errors/error/e2d684637c2c6810639d33d11b1fd95adf94b169.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 NFS CB 119 FragmentFragmentFragment  ; V3844603904 proc-3137388032 Call
  • pcap: e2d684637c2c6810639d33d11b1fd95adf94b169.pcap

DCERPC


tshark_errors/error/7c04dfdd49cef00fa85cebf2a7af47181a12f9ad.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 DCERPC 134 RPC-over-HTTP RTS: call_id: 12763842, Fragment: Mid[BoundErrorUnreassembled Packet]
  • pcap: 7c04dfdd49cef00fa85cebf2a7af47181a12f9ad.pcap

RPC

tshark_errors/error/d6ca8adc49c920a3e628c909e144b717112eb236.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 RPC 116 FragmentFragmentFragmentFragment
  • pcap: d6ca8adc49c920a3e628c909e144b717112eb236.pcap

BPv7


tshark_errors/error/34c6678ceeeb0676f126bd8fd3c4a60a53cbbf2b.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 BPv7 80 [Malformed Packet]
  • pcap: 34c6678ceeeb0676f126bd8fd3c4a60a53cbbf2b.pcap

5co-legacy


tshark_errors/error/bd87afea90f7f96919d2af8895c3fb2ddb6c9d54.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000 170.170.170.170 → 170.170.170.170 5co-legacy 126 I2C Read and write with ack ID=1799 Len=0 [BAD CHECKSUM !!], I2C Read and write with ack ID=1799 Len=0 [BAD CHECKSUM !!], I2C Read and write with ack ID=1799 Len=16 [BAD CHECKSUM !!]
  • pcap: bd87afea90f7f96919d2af8895c3fb2ddb6c9d54.pcap

6LoWPAN

tshark_errors/error/695ec0c3565e61008b761ccb37bb9351efb2c1b2.pcap
../epan/tvbuff.c:932:17: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:44:28: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:932:17 in 
    1   0.000000       0x8888 →              6LoWPAN 101 Data, Src: 0x8888[BoundErrorUnreassembled Packet]
  • pcap: 695ec0c3565e61008b761ccb37bb9351efb2c1b2.pcap

JXTA

tshark_errors/error/daa5b5267078cc99209152a253546e0665989768.pcap
../epan/tvbuff.c:2232:35: runtime error: null pointer passed as argument 1, which is declared to never be null
/usr/include/string.h:92:34: note: nonnull attribute specified here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../epan/tvbuff.c:2232:35 in 
    1   0.000000 136.136.136.136 → 136.131.18.2 JXTA 129 Welcome
  • pcap: daa5b5267078cc99209152a253546e0665989768.pcap

Build information

TShark (Wireshark) 3.7.0 (v3.7.0rc0-844-g14a1dfbe1083)
Edited Jan 30, 2022 by Sharon Brizinov
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