CVE-2017-2921 Integer overflow in Mongoose
A remote attacker can trigger a heap buffer overflow via a crafted WebSocket packet, causing denial of service or potential remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-2921?
CVE-2017-2921 is a high-severity vulnerability in Cesanta Mongoose, published on 7 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An exploitable memory corruption vulnerability exists in the Websocket protocol implementation of Cesanta Mongoose 6.8. A specially crafted websocket packet can cause an integer overflow, leading to a heap buffer overflow and resulting in denial of service and potential remote code execution. An attacker needs to send a specially crafted websocket packet over network to trigger this vulnerability.
Weakness: CWE-190
Which versions are affected by CVE-2017-2921?
It affects 1 product.
Products include Cesanta Mongoose.
How do I fix CVE-2017-2921?
Upgrade to a fixed version.
Is CVE-2017-2921 being exploited?
There is no known exploitation of CVE-2017-2921 in the wild and no public exploit code.
Other vulnerabilities in Cesanta Mongoose
Sources
Also known as DEBIAN-CVE-2017-2921, GHSA-5xj4-7qf8-2g46.