Summary

Name: Wireshark CIP dissector memory exhaustion

Docid: wnpa-sec-2012-20

Date: August 15, 2012

Versions affected: 1.4.0 to 1.4.14, 1.6.0 to 1.6.9, 1.8.0 to 1.8.1

Fixed in: 1.8.2, 1.6.10, 1.4.15

References: Wireshark bug 7570
CVE-2012-4291

Details

Description

The CIP dissector could exhaust system memory. Reported by Ben Schmidt.

Impact

It may be possible to make Wireshark consume excessive system resources by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Resolution

Upgrade to Wireshark 1.8.2, 1.6.10, 1.4.15 or later.