CVE-2023-49295

Name of the Vulnerable Software and Affected Versions quic-go versions prior to 0.37.7 quic-go versions prior to 0.38.2 quic-go versions prior to 0.39.4

Description An attacker can cause its peer to run out of memory by sending a large number of PATH CHALLENGE frames. The receiver is supposed to respond to each PATH CHALLENGE frame with a PATH RESPONSE frame. However, the attacker can prevent the receiver from sending out most of these PATH RESPONSE frames by collapsing the peer's congestion window and manipulating the peer's RTT estimate.

Recommendations For versions prior to 0.37.7, update to version 0.37.7 or later. For versions prior to 0.38.2, update to version 0.38.2 or later. For versions prior to 0.39.4, update to version 0.39.4 or later.