漏洞信息
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Vulnerability Title
undici WebSocket client vulnerable to denial of service via cumulative fragment bypass
Vulnerability Description
Impact: The undici WebSocket client enforces maxPayloadSize per-frame but does not enforce the cumulative size of fragmented uncompressed messages. A malicious WebSocket server can stream many small fragments that each pass per-frame validation but collectively exceed the configured limit, causing unbounded memory growth in the client process. The result is memory exhaustion and a denial of service. Affected applications are those using the undici WebSocket client (new WebSocket(...)) that can be induced to connect to an attacker-controlled or compromised WebSocket endpoint. This is a regression specific to undici 8.1.0. The 6.25.0 line shipped the equivalent cumulative check from the start and is unaffected. The 7.x line never had the maxPayloadSize feature and is also unaffected. Patches: Upgrade to undici >= 8.5.0. Workarounds: No workaround is available. The fix must be applied through an upgrade.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Vulnerability Title
Node.js undici 资源管理错误漏洞
Vulnerability Description
Node.js undici是Node.js基金会开源的一个HTTP/1.1客户端。 Node.js undici 8.0.0版本、8.1.0版本、8.2.0版本、8.3.0版本、8.4.0版本存在资源管理错误漏洞,该漏洞源于未对分片未压缩消息的累积大小强制执行配置限制,导致内存耗尽并拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A