CVE-2017-2893: Null Pointer Dereference
First published: Tue Nov 07 2017(Updated: )
An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cesanta Mongoose | =6.8 |
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Frequently Asked Questions
What is CVE-2017-2893?
CVE-2017-2893 is a vulnerability that allows attackers to crash the server and cause a denial of service by exploiting a NULL pointer dereference in the MQTT packet parsing functionality of Cesanta Mongoose 6.8.
How severe is CVE-2017-2893?
CVE-2017-2893 has a severity rating of 7.5 out of 10, indicating a high severity.
What software is affected by CVE-2017-2893?
Cesanta Mongoose 6.8 is affected by CVE-2017-2893.
How can CVE-2017-2893 be fixed?
To fix CVE-2017-2893, it is recommended to update Cesanta Mongoose to a version that is not affected by the vulnerability.
Where can I find more information about CVE-2017-2893?
More information about CVE-2017-2893 can be found at https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0400.
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