websockets is vulnerable to denial of service by memory exhaustion

高 7.5CVE-2018-1000518 · GHSA-6g87-ff9q-v847 · PYSEC-2018-79 · 26/06/2018 公開 · 17/06/2026 更新

要点

CVE-2018-1000518 は websockets, websockets (websockets project) に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.8%（全脆弱性の 78.9% より高い）。
対処：5.0 以降に更新してください。

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
websockets PyPI	`≥ 4.0, < 5.0< 5.0`	`5.0`
websockets websockets_project	`= 4.0`	修正版なし

概要

The Python websockets library version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appears to be exploitable via sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in version 5.0

NVD の説明

aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appear to be exploitable via Sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in 5.