wnpa-sec-2012-12 · Large loop in the NFS dissector

Summary

Name: Large loop in the NFS dissector

Docid: wnpa-sec-2012-12

Date: July 22, 2012

Affected versions: 1.4.0 to 1.4.13, 1.6.0 to 1.6.8, 1.8.0

Fixed versions: 1.8.1, 1.6.9, 1.4.14

References: Wireshark bug 7436
CVE-2012-4049

Details

Description

The NFS dissector could use excessive amounts of CPU.

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 1.8.1, 1.6.9, 1.4.14 or later.