VDB-125268 · CVE-2018-18225 · BID 105583

Wireshark 2.6.0/2.6.1/2.6.2/2.6.3 CoAP Dissector packet-coap.c Packet input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Wireshark 2.6.0/2.6.1/2.6.2/2.6.3 (Packet Analyzer Software). It has been classified as problematic. Affected is an unknown part of the file epan/dissectors/packet-coap.c of the component CoAP Dissector. The manipulation as part of a Packet leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

In Wireshark 2.6.0 to 2.6.3, the CoAP dissector could crash. This was addressed in epan/dissectors/packet-coap.c by ensuring that the piv length is correctly computed.

The bug was discovered 10/10/2018. The weakness was presented 10/12/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2018-18225 since 10/10/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118207 (Wireshark 2.6.x < 2.6.4 Multiple Vulnerabilities), 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 371260 (Wireshark Multiple Vulnerabilities (wnpa-sec-2018-47 to wnpa-sec-2018-50)).

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 vulnerability database at Tenable (118207). See 125269 and 125270 for similar entries.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 7.5
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Class: Input validation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍


Nessus ID: 118207
Nessus Name: Wireshark 2.6.x < 2.6.4 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: b2bbd9fdf209911d94b23cc33f4daccbceb7fa8a


10/10/2018 🔍
10/10/2018 +0 days 🔍
10/10/2018 +0 days 🔍
10/11/2018 +1 days 🔍
10/12/2018 +0 days 🔍
10/12/2018 +0 days 🔍
10/12/2018 +0 days 🔍
10/18/2018 +6 days 🔍
05/25/2023 +1680 days 🔍


Product: wireshark.org

Advisory: securityfocus.com
Status: Confirmed

CVE: CVE-2018-18225 (🔍)

SecurityTracker: 1041909
SecurityFocus: 105583 - Wireshark Multiple Denial of Service Vulnerabilities

See also: 🔍


Created: 10/12/2018 01:01 PM
Updated: 05/25/2023 09:34 AM
Changes: 10/12/2018 01:01 PM (74), 04/02/2020 06:56 AM (5), 05/25/2023 09:34 AM (6)
Complete: 🔍


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