What is Wireshark?

Wireshark is the world’s most popular network protocol analyzer. It is used for troubleshooting, analysis, development and education.

What’s New

Bug Fixes

The following vulnerabilities have been fixed:

The following bugs have been fixed:

  • ISMP.EDP "Tuples" dissected incorrectly. Bug 4943.

  • Wireshark - Race issue when switching between files using Wireshark’s "Files in Set" dialog. Bug 10870.

  • Sorting on "Source port" or "Destination port" column sorts alphabetically, not numerically. Bug 11460.

  • Wireshark crashes when changing profiles. Bug 11648.

  • Crash when starting capture while saving capture file or rescanning file after display filter change. Bug 13594.

  • Crash when switching to TRANSUM enabled profile. Bug 13697.

  • TCP retransmission with additional payload leads to incorrect bytes and length in stream. Bug 13700.

  • Wireshark crashes with single quote string display filter. Bug 14084.

  • randpkt can write packets that libwiretap can’t read. Bug 14107.

  • Wireshark crashes when loading new file before previous load has finished. Bug 14351.

  • Valid packet produces Malformed Packet: OpcUa. Bug 14465.

  • Error received from dissect_wccp2_hash_assignment_info(). Bug 14573.

  • CRC checker wrong for FPP. Bug 14610.

  • Cross-build broken due to make-dissectors and make-taps. Bug 14622.

  • Extraction of SMB file results in wrong size. Bug 14662.

  • 6LoWPAN dissector merges fragments from different sources. Bug 14700.

  • IP address to name resolution doesn’t work in TShark. Bug 14711.

  • "Decode as" Modbus RTU over USB doesn’t work with 2.6.0 but with 2.4.6. Bug 14717.

  • proto_tree_add_protocol_format might leak memory. Bug 14719.

  • tostring for NSTime objects in lua gives wrong results. Bug 14720.

  • Media type "application/octet-stream" registered for both Thread and UASIP. Bug 14729.

  • Crash related to SCTP tap. Bug 14733.

  • Formatting of OSI area addresses/address prefixes goes past the end of the area address/address prefix. Bug 14744.

  • ICMPv6 Router Renumbering - Packet Dissector - malformed. Bug 14755.

  • WiMAX HARQ MAP decoder segfaults when length is too short. Bug 14780.

  • HTTP PUT request following a HEAD request is not correctly decoded. Bug 14793.

  • SYNC PDU type 3 miss the last PDU length. Bug 14823.

  • Reversed 128 bits service UUIDs when Bluetooth Low Energy advertisement data are dissected. Bug 14843.

  • Issues with Wireshark when the user doesn’t have permission to capture. Bug 14847.

  • Wrong description when LE Bluetooth Device Address type is dissected. Bug 14866.

  • LE Role advertisement type (0x1c) is not dissected properly according to the Bluetooth specification. Bug 14868.

  • Regression: Wireshark 2.6.0 and 2.6.1 are unable to read NetMon files which were readable by previous versions. Bug 14876.

  • Wireshark doesn’t properly display (deliberately) invalid 220 responses from Postfix. Bug 14878.

  • Follow TCP Stream and click reassembled content moves you to incorrect current packet. Bug 14898.

  • Crash when changing profiles while loading a capture file. Bug 14918.

  • Duplicate PDU during C Arrays Output Export. Bug 14933.

  • DCE/RPC not dissected when "reserved for use by implementations" flag bits set. Bug 14942.

  • Follow TCP Stream truncates output on missing (but ACKed) segments. Bug 14944.

  • There’s no option to include column headings when printing packets or exporting packet dissections with Qt Wireshark. Bug 14945.

  • Qt: SCTP Graph Dialog: Abort when doing analysis. Bug 14971.

  • CMake is unable to find LUA libraries. Bug 14983.

New and Updated Features

There are no new features in this release.

New Protocol Support

There are no new protocols in this release.

Updated Protocol Support

6LoWPAN, ASN.1 BER, Bazaar, BGP, Bluetooth, Bluetooth HCI_CMD, CIGI, Cisco ttag, CoAP, Data, DCERPC, Diameter 3GPP, DICOM, DOCSIS, FPP, GSM A GM, GTPv2, HTTP, HTTP2, IAX2, ICMPv6, IEEE 1722, IEEE 802.11, IPv4, ISMP, LISP, MMSE, MTP3, MySQL, NFS, OpcUa, PPI GPS, Q.931, RNSAP, RPCoRDMA, S1AP, SCTP, SMB, SMTP, STUN, SYNC, T.30, TCP, TRANSUM, WAP, WCCP, Wi-SUN, WiMax HARQ Map Message, and WSP

New and Updated Capture File Support

Alcatel-Lucent Ascend and Microsoft Network Monitor

New and Updated Capture Interfaces support

There is no new or updated capture file support in this release.

Getting Wireshark

Wireshark source code and installation packages are available from https://www.wireshark.org/download.html.

Vendor-supplied Packages

Most Linux and Unix vendors supply their own Wireshark packages. You can usually install or upgrade Wireshark using the package management system specific to that platform. A list of third-party packages can be found on the download page on the Wireshark web site.

File Locations

Wireshark and TShark look in several different locations for preference files, plugins, SNMP MIBS, and RADIUS dictionaries. These locations vary from platform to platform. You can use About→Folders to find the default locations on your system.

Known Problems

The BER dissector might infinitely loop. Bug 1516.

Capture filters aren’t applied when capturing from named pipes. Bug 1814.

Filtering tshark captures with read filters (-R) no longer works. Bug 2234.

Application crash when changing real-time option. Bug 4035.

Wireshark and TShark will display incorrect delta times in some cases. Bug 4985.

Wireshark should let you work with multiple capture files. Bug 10488.

Getting Help

Community support is available on Wireshark’s Q&A site and on the wireshark-users mailing list. Subscription information and archives for all of Wireshark’s mailing lists can be found on the web site.

Official Wireshark training and certification are available from Wireshark University.

Frequently Asked Questions

A complete FAQ is available on the Wireshark web site.

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