CVE-2019-5184: Double Free
First published: Mon Mar 23 2020(Updated: )
An exploitable double free vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WAGO PFC200 | =03.02.02\(14\) | |
| WAGO PFC Firmware |
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Frequently Asked Questions
What is CVE-2019-5184?
CVE-2019-5184 is an exploitable double free vulnerability in the iocheckd service I/O-Check functionality of WAGO PFC 200.
What is the severity of CVE-2019-5184?
CVE-2019-5184 has a severity rating of 7.8 (High).
Which software is affected by CVE-2019-5184?
WAGO PFC200 Firmware version 03.02.02(14) is affected by CVE-2019-5184.
How does CVE-2019-5184 work?
An attacker can create a specially crafted XML cache file in a specific location on the device, which triggers a double free vulnerability in the iocheckd service, leading to denial of service and potentially code execution.
Is WAGO PFC200 vulnerable to CVE-2019-5184?
WAGO PFC200 is vulnerable to CVE-2019-5184 if it is running firmware version 03.02.02(14).
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