~ / search / GHSA-c33x-xqrf-c478

GHSA-c33x-xqrf-c478

QUIC's Connection ID Mechanism vulnerable to Memory Exhaustion Attack

Source: GitHub Advisory Database (reviewed) High CVE-2024-22189

Packages

EcosystemPackageAffectedFixed in
Go github.com/quic-go/quic-go < 0.42.0 0.42.0

Details

As written in the advisory (Markdown source, shown as plain text).

An attacker can cause its peer to run out of memory by sending a large number of NEW_CONNECTION_ID frames that retire old connection IDs. The receiver is supposed to respond to each retirement frame with a RETIRE_CONNECTION_ID frame. The attacker can prevent the receiver from sending out (the vast majority of) these RETIRE_CONNECTION_ID frames by collapsing the peers congestion window (by selectively acknowledging received packets) and by manipulating the peer's RTT estimate. I published a more detailed description of the attack and its mitigation in this blog post: https://seemann.io/posts/2024-03-19-exploiting-quics-connection-id-management/. I also presented this attack in the IETF QUIC working group session at IETF 119: https://youtu.be/JqXtYcZAtIA?si=nJ31QKLBSTRXY35U&t=3683 There's no way to mitigate this attack, please update quic-go to a version that contains the fix.

References

External links from the advisory. They lead to third-party sites.