wnpa-sec-2017-39 · Profinet I/O buffer overrun

Summary

Name: Profinet I/O buffer overrun

Docid: wnpa-sec-2017-39

Date: August 29, 2017

Affected versions: 2.4.0, 2.2.0 to 2.2.8

Fixed versions: 2.4.1, 2.2.9

References:
Wireshark issue 13847
CVE-2017-13766

Details

Description

The Profinet I/O dissector could overrun a buffer. Discovered by ulf33286.

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 2.4.1, 2.2.9 or later.