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Wireshark 1.4.8 Release Notes

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. See the security advisory for details and a workaround.

  • The Lucent/Ascend file parser was susceptible to an infinite loop.

    Versions affected: 1.2.0 to 1.2.17, 1.4.0 to 1.4.7, and 1.6.0.


  • The ANSI MAP dissector was susceptible to an infinite loop. (Bug 6044)

    Versions affected: 1.4.0 to 1.4.7, and 1.6.0.


The following bugs have been fixed:

  • TCP dissector doesn't decode TCP segments of length 1. (Bug 4716)

  • Wireshark 1.4.0rc1 and python - spurious message. (Bug 4878)

  • Missing LUA function. (Bug 5006)

  • Lua API description about creating a new Tvb from a bytearray is not correct in wireshark's user guide. (Bug 5199)

  • sflow decode error for some extended formats. (Bug 5379)

  • White space in protocol field abbreviation causes runtime failure while registering Lua dissector. (Bug 5569)

  • "File not found" box uses wrong filename encoding. (Bug 5715)

  • capinfos: #ifdef HAVE_LIBGCRYPT block includes a line too many. (Bug 5803)

  • Wireshark crashes if Lua contains "Pref.range()" with missing arguments. (Bug 5895)

  • The "range" field in Lua's "Pref.range()" serves as default while the "default" field does nothing. (Bug 5896)

  • Wireshark crashes when calling TreeItem:set_len() on TreeItem without tvb. (Bug 5941)

  • TvbRange_string(lua_State* L) call a wrong function. (Bug 5960)

  • VoIP call flow graph displays BICC APM as a BICC ANM. (Bug 5966)

  • H323 rate multiplier wrong. (Bug 6009)

  • tshark crashes when loading Lua script that contains GUI function. (Bug 6018)

  • 802.11 Disassociation Packet's "Reason Code" field is imprecisely decoded/described. (Bug 6022)

  • Wireshark crashes when setting custom column's field name with conditional. (Bug 6028)

  • GTS Descriptor count limited to 3 instead of 7. (Bug 6055)

  • The SSL dissector can not resemble correctly the frames after TCP zero window probe packet. (Bug 6059)

  • Packet parser takes too long for this trace. (Bug 6073)

  • 802.11 Association Response Packet's "Status Code" field is imprecisely decoded/described. (Bug 6093)

  • Wireshark 1.6.0 and Python support: installer fails to create the wspy_dissectors subdirectory and . (Bug 6110)

  • Wireshark crash during RTP stream analysis. (Bug 6120)

  • Tshark custom columns: Why don't I get an error message? (Bug 6131)

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

ANSI MAP, GIOP, H.323, IEEE 802.11, MSRP, RPCAP, sFlow, TCP,

New and Updated Capture File Support


Getting Wireshark

Wireshark source code and installation packages are available from

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

Wireshark might make your system disassociate from a wireless network on OS X 10.4. (Bug 1315)

Dumpcap might not quit if Wireshark or TShark crashes. (Bug 1419)

The BER dissector might infinitely loop. (Bug 1516)

Capture filters aren't applied when capturing from named pipes. (Bug 1814)

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

The 64-bit Windows installer does not ship with the same libraries as the 32-bit installer. (Bug 3610)

Hex pane display issue after startup. (Bug 4056)

Packet list rows are oversized. (Bug 4357)

Summary pane selected frame highlighting not maintained. (Bug 4445)

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.

Training is available from Wireshark University.

Frequently Asked Questions

A complete FAQ is available on the Wireshark web site.