packet-paltalk.c in the Paltalk dissector in Wireshark 1.2.0 through 1.2.2, on SPARC and certain other platforms, allows remote attackers to cause a denial of service (application crash) via a file that records a malformed packet trace.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.