CVE-2017-13764 Information

Description

In Wireshark 2.4.0 the Modbus dissector could crash with a NULL pointer dereference. This was addressed in epan/dissectors/packet-mbtcp.c by adding length validation.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/100545 http://www.securitytracker.com/id/1039254 https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13925 https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=b87ffbd12bddf64582c0a6e082b462744474de94 https://www.wireshark.org/security/wnpa-sec-2017-40.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5