wnpa-sec-2017-38 · MSDP dissector infinite loop

Summary

Name: MSDP dissector infinite loop

Docid: wnpa-sec-2017-38

Date: August 29, 2017

Affected versions: 2.4.0, 2.2.0 to 2.2.8, 2.0.0 to 2.0.14

Fixed versions: 2.4.1, 2.2.9, 2.0.15

References:
Wireshark issue 13933
CVE-2017-13767

Details

Description

The MSDP dissector could go into an infinite loop. Discovered by Zhangwangjunjie and Marco Grass.

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 2.4.1, 2.2.9, 2.0.15 or later.