7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
15.7%
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.
CPE | Name | Operator | Version |
---|---|---|---|
github.com/quic-go/quic-go | lt | 0.42.0 |
github.com/quic-go/quic-go
github.com/quic-go/quic-go/commit/4a99b816ae3ab03ae5449d15aac45147c85ed47a
github.com/quic-go/quic-go/security/advisories/GHSA-c33x-xqrf-c478
nvd.nist.gov/vuln/detail/CVE-2024-22189
seemann.io/posts/2024-03-19-exploiting-quics-connection-id-management
www.youtube.com/watch?v=JqXtYcZAtIA&t=3683s