CVE-2017-2921

Published: Nov 7, 2017Modified: May 13, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Cesanta: Mongoose

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Cesanta Mongoose	Version 6.8

Related CWEs

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (2)

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428

Source: talos-cna@cisco.com

ExploitTechnical DescriptionThird Party Advisory

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0428

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitTechnical DescriptionThird Party Advisory

Timeline

No history available yet.