CVEvulnerability
CVE-2020-36406
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-07-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
Description
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 "a 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
Affected configurations
• uwebsockets project uwebsockets 18.11.0
• uwebsockets project uwebsockets 18.12.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25381 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/uwebsockets/OSV-2020-1695.yaml Third Party Advisory
- https://github.com/uNetworking/uWebSockets/commit/03fca626a95130ab80f86adada54b29d27242759 Patch, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25381 Exploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/uwebsockets/OSV-2020-1695.yaml Third Party Advisory
- https://github.com/uNetworking/uWebSockets/commit/03fca626a95130ab80f86adada54b29d27242759 Patch, Third Party Advisory