| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| websocket-driver | < 0.7.5 | 0.7.5 |
If this library is used in tandem with the permessage-deflate extension, a WebSocket server or client can be made to accept messages that are larger than the configured maximum message size. This is because this limit is checked against the message frames' length headers, which give the size of the compressed data, not the size after decompression. This can lead to applications accepting larger messages than expected and exceeding their intended resource usage.
The issue has been patched in version 0.7.5, by checking the length of messages after they are processed by incoming extensions. All users should upgrade to this version.
No known workarounds exist.
This issue was discovered and reported by Pranjali Thakur, DepthFirst Security Research Team.
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