CVE-2017-13764

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.43%
Vendor Advisory wireshark.org Vendor Advisory wireshark.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=b87ffbd12bddf64582c0a6e082b462744474de94
http://www.securityfocus.com/bid/100545 vdb entry
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13925 issue tracking patch vendor advisory
https://www.wireshark.org/security/wnpa-sec-2017-40.html vendor advisory
http://www.securitytracker.com/id/1039254 vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-13764?
CVE-2017-13764 has been scored as a high severity vulnerability.
How to fix CVE-2017-13764?
To fix CVE-2017-13764, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-13764 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-13764 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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