module: github.com/gorilla/websocket
versions:
- fixed: v1.4.1
description: |
  An attacker can craft malicious WebSocket frames that cause an integer
  overflow in a variable which tracks the number of bytes remaining. This
  can cause the server or client to get stuck attempting to read frames
  in a loop.
published: 2021-04-14T12:00:00Z
cve: CVE-2020-27813
credit: Max Justicz
symbols:
- Conn.advanceFrame
- messageReader.Read
links:
  pr: https://github.com/gorilla/websocket/pull/537
  commit: https://github.com/gorilla/websocket/commit/5b740c29263eb386f33f265561c8262522f19d37