CVE-2020-36406 Information

Description

DISPUTED uWebSockets 18.11.0 and 18.12.0 has a stack-based buffer overflow in uWS::TopicTree::trimTree (called from uWS::TopicTree::unsubscribeAll). NOTE: the vendor’s position is that this is  minor issue or not even an issue at all\ because the developer of an application (that uses uWebSockets) should not be allowing the large number of triggered topics to accumulate.

CVSS Vector

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

Reference

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/uwebsockets/OSV-2020-1695.yaml https://github.com/uNetworking/uWebSockets/commit/03fca626a95130ab80f86adada54b29d27242759 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25381

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8