Security Advisory

CVE-2023-49295

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2024-01-10 21:40:58

Last updated 2025-06-17 20:59:15

Assigner GitHub_M

State PUBLISHED

Description

quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC 9002) in Go. An attacker can cause its peer to run out of memory sending a large number of PATH_CHALLENGE frames. The receiver is supposed to respond to each PATH_CHALLENGE frame with a PATH_RESPONSE frame. The attacker can prevent the receiver from sending out (the vast majority of) these PATH_RESPONSE frames by collapsing the peers congestion window (by selectively acknowledging received packets) and by manipulating the peers RTT estimate. This vulnerability has been patched in versions 0.37.7, 0.38.2 and 0.39.4.

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