wnpa-sec-2017-27 · DICOM dissector infinite loop

Summary

Name: DICOM dissector infinite loop

Docid: wnpa-sec-2017-27

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 13685.
CVE-2017-9349.

Details

Description

The DICOM dissector could to into an infinite loop. Discovered by the OSS-Fuzz project.

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 2.2.7, 2.0.13 or later.