Astra Linux – Vulnerability in Node.js

A memory leak could occur when a remote peer abruptly closes the socket without sending a “GOAWAY” notification. Additionally, if an invalid header is detected by nghttp2, causing the connection to be terminated by the peer, the same memory leak will be triggered. This flaw could lead to increase...

An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.

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