Wireshark 2.4.0 Modbus Dissector packet-mbtcp.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Wireshark 2.4.0 (Packet Analyzer Software). This affects an unknown part of the file epan/dissectors/packet-mbtcp.c of the component Modbus Dissector. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

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.

The bug was discovered 08/29/2017. The weakness was shared 08/30/2017 as Bug 13925 as confirmed bug report (Bugzilla). The advisory is shared at bugs.wireshark.org. This vulnerability is uniquely identified as CVE-2017-13764 since 08/30/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 102921 (Wireshark 2.4.x < 2.4.1 Multiple DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370542 (Wireshark Multiple Vulnerabilities (wnpa-sec-2017-38 to wnpa-sec-2017-41)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102921), SecurityFocus (BID 100545†) and SecurityTracker (ID 1039254†). The entries VDB-105970, VDB-105971 and VDB-105972 are related to this item.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102921
Nessus Name: Wireshark 2.4.x < 2.4.1 Multiple DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801832
OpenVAS Name: Wireshark Modbus Dissector DoS Vulnerability (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: b87ffbd12bddf64582c0a6e082b462744474de94

Timelineinfo

08/29/2017 🔍
08/29/2017 +0 days 🔍
08/30/2017 +1 days 🔍
08/30/2017 +0 days 🔍
08/30/2017 +0 days 🔍
08/30/2017 +0 days 🔍
08/30/2017 +0 days 🔍
09/01/2017 +2 days 🔍
09/01/2017 +0 days 🔍
12/27/2022 +1943 days 🔍

Sourcesinfo

Product: wireshark.org

Advisory: Bug 13925
Researcher: alessandro.cavallaro
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-13764 (🔍)
SecurityFocus: 100545 - Wireshark Modbus Dissector CVE-2017-13764 Denial of Service Vulnerability
SecurityTracker: 1039254

See also: 🔍

Entryinfo

Created: 08/30/2017 04:45 PM
Updated: 12/27/2022 09:47 AM
Changes: 08/30/2017 04:45 PM (72), 11/12/2019 09:14 PM (12), 01/10/2021 12:25 PM (2), 12/27/2022 09:47 AM (4)
Complete: 🔍
Cache ID: 18:FF8:40

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