wnpa-sec-2017-24 · DHCP dissector read overflow

Summary

Name: DHCP dissector read overflow

Docid: wnpa-sec-2017-24

Date: June 1, 2017

Affected versions: 2.2.0 to 2.2.6, 2.0.0 to 2.0.12

Fixed versions: 2.2.7, 2.0.13

References:
Wireshark issue 13609
Wireshark issue 13628
CVE-2017-9351

Details

Description

The DHCP dissector could read past the end of a buffer. Discovered by the OSS-Fuzz project.

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 2.2.7, 2.0.13 or later.