VDB-122619 · CVE-2018-14938 · Qualys 197438

tcpflow up to 1.5.0-alpha wifipcap/wifipcap.cpp handle_80211 caplen out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in tcpflow up to 1.5.0-alpha. This affects the function handle_80211 of the file wifipcap/wifipcap.cpp. The manipulation of the argument caplen with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 08/02/2018. The weakness was shared 08/05/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2018-14938 since 08/04/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 117299 (Fedora 27 : tcpflow (2018-4f0b7d1251)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197438 (Ubuntu Security Notification for Tcpflow Vulnerabilities (USN-3955-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117299). The entry 125686 is related to this item.





CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍



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Class: Out-of-bounds
CWE: CWE-125 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 117299
Nessus Name: Fedora 27 : tcpflow (2018-4f0b7d1251)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Context: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Patch: github.com


08/02/2018 🔍
08/04/2018 +1 days 🔍
08/04/2018 +0 days 🔍
08/05/2018 +1 days 🔍
08/05/2018 +0 days 🔍
09/06/2018 +32 days 🔍
09/06/2018 +0 days 🔍
04/29/2023 +1696 days 🔍


Advisory: FEDORA-2018-4f0b7d1251
Status: Confirmed

CVE: CVE-2018-14938 (🔍)
See also: 🔍


Created: 08/05/2018 07:39 AM
Updated: 04/29/2023 03:52 PM
Changes: 08/05/2018 07:39 AM (72), 03/13/2020 01:33 PM (3), 04/29/2023 03:41 PM (5), 04/29/2023 03:46 PM (1), 04/29/2023 03:52 PM (1)
Complete: 🔍


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