wnpa-sec-2017-10 · IAX2 infinite loop

Summary

Name: IAX2 infinite loop

Docid: wnpa-sec-2017-10

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 13432
CVE-2017-6470

Details

Description

The IAX2 dissector 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 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.