Wireshark WSP Dissector 'packet-wsp.c' Infinite Loop Denial of Service Vulnerability

Wireshark is prone to a remote denial-of-service vulnerability because it fails to properly handle certain types of packets.

Attackers can exploit this issue to cause the application to enter an infinite loop which may cause denial-of-service.

Wireshark 2.2.0 through 2.2.5 and 2.0.0 through 2.0.11 are vulnerable.

Information

Bugtraq ID: 97628
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2017-7748

Remote: Yes
Local: No
Published: Apr 12 2017 12:00AM
Updated: Apr 12 2017 12:00AM
Credit: Jakub Zawadzki
Vulnerable: Wireshark Wireshark 2.2.5
Wireshark Wireshark 2.2.4
Wireshark Wireshark 2.2.3
Wireshark Wireshark 2.2.2
Wireshark Wireshark 2.2.1
Wireshark Wireshark 2.2
Wireshark Wireshark 2.0.11
Wireshark Wireshark 2.0.10
Wireshark Wireshark 2.0.9
Wireshark Wireshark 2.0.8
Wireshark Wireshark 2.0.7
Wireshark Wireshark 2.0.6
Wireshark Wireshark 2.0.5
Wireshark Wireshark 2.0.3
Wireshark Wireshark 2.0.2
Wireshark Wireshark 2.0.4
Wireshark Wireshark 2.0.1
Wireshark Wireshark 2.0.0

Not Vulnerable: Wireshark Wireshark 2.2.6
Wireshark Wireshark 2.0.12

Exploit

A sample packet trace file is available in the Wireshark bug report. Please see the references for more information.

References:

• Wireshark Homepage (Wireshark)
  
• Bug 13581 - libfuzzer: WSP dissector loop (add_capabilities) (Wireshark)
  
• wnpa-sec-2017-21 · WSP dissector infinite loop (Wireshark)
  

Source: www.securityfocus.com