Wireshark 1.0.3 fixes the following vulnerabilities:

• The NCP dissector was susceptible to a number of problems, including buffer overflows and an infinite loop. (Bug )
  Versions affected: 0.9.7 to 1.0.2
• Wireshark could crash while uncompressing zlib-compressed packet data. (Bug )
  Versions affected: 0.10.14 to 1.0.2
• Wireshark could crash while reading a Tektronix .rf5 file.
  Versions affected: 0.99.6 to 1.0.2

Impact

It may be possible to make Wireshark crash by injecting a series of malformed packets onto the wire or by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 1.0.3 or later. Due to the nature of these bugs, there is no workaround for previous versions.