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wnpa-sec-2017-14 · NetScaler file parser infinite loop

Summary

Name: NetScaler file parser infinite loop

Docid: wnpa-sec-2017-14

Date: April 12, 2017

Affected versions: 2.2.0 to 2.2.5, 2.0.0 to 2.0.11

Fixed versions: 2.2.6, 2.0.12

References:

Wireshark issue 13478.
CVE-2017-7700.

Details

Description

The NetScaler file parser could go into an infinite loop. Discovered by Otto Airamo and Antti Levomäki, Forcepoint.

Impact

It may be possible to make Wireshark consume excessive CPU resources by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 2.2.6, 2.0.12 or later.