wnpa-sec-2011-10 · Lucent/Ascend file parser and ANSI MAP vulnerabilities in Wireshark


Name: Lucent/Ascend file parser and ANSI MAP vulnerabilities in Wireshark

Docid: wnpa-sec-2011-10

Date: July 18, 2011

Affected versions: {{ start_version }} up to and including {{ end_version }}

Fixed versions: 1.4.8

Related: wnpa-sec-2011-11 (Lucent/Ascend file parser and ANSI MAP vulnerabilities in Wireshark version 1.6.0) wnpa-sec-2011-09 (Lucent/Ascend file parser vulnerability in Wireshark version 1.2.0 to 1.2.17)



Wireshark 1.4.8 fixes the following vulnerabilities:

  • 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.


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.


Upgrade to Wireshark 1.4.8 or later. Although you can disable the ANSI MAP dissector it is not possible to work around the Lucent/Ascend parser bug.

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