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wnpa-sec-2017-07 · NetScaler file parser infinite loop

Summary

Name: NetScaler file parser infinite loop

Docid: wnpa-sec-2017-07

Date: March 3, 2017

Affected versions: 2.2.0 to 2.2.4, 2.0.0 to 2.0.10

Fixed versions: 2.2.5, 2.0.11

References:

Wireshark issue 13429.
CVE-2017-6474.

Details

Description

The NetScaler dissector could go into an infinite loop and consume memory. Discovered by Otto Airamo and Antti Levomäki, Forcepoint.

Impact

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

Resolution

Upgrade to Wireshark 2.2.5, 2.0.11 or later.