Launch Week Day 1: Announcing Security Design Review
HIGH 7.5 Go

golang.org/x/net/http vulnerable to a reset flood

GHSA-39qc-96h7-956f · CVE-2019-9512 · CVE-2019-9514 · GHSA-hgr8-6h9x-f7q9 · GO-2022-0536

Published · Modified

Description

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. Servers that accept direct connections from untrusted clients could be remotely made to allocate an unlimited amount of memory, until the program crashes. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.

Specific Go Packages Affected

golang.org/x/net/http2

References

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