CVE-2024-45311: high-severity vulnerability in quinn-rs quinn
Denial of service in quinn-proto when using `Endpoint::retry()`
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. As of quinn-proto 0.11, it is possible for a server to `accept()`, `retry()`, `refuse()`, or `ignore()` an `Incoming` connection. However, calling `retry()` on an unvalidated connection exposes the server to a likely panic in the following situations: 1. Calling `refuse` or `ignore` on the resulting validated connection, if a duplicate initial packet is received. This issue can go undetected until a server's `refuse()`/`ignore()` code path is exercised, such as to stop a denial of service attack. 2. Accepting when the initial packet for the resulting validated connection fails to decrypt or exhausts connection IDs, if a similar initial packet that successfully decrypts and doesn't exhaust connection IDs is received. This issue can go undetected if clients are well-behaved. The former situation was observed in a real application, while the latter is only theoretical.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
quinn-rs · quinnRelated CVEs — quinn-rs quinn
In the same product, most dangerous first.
CVE-2023-42805HIGHquinn-proto Denial of Service vulnerabilityEPSS 0.9%CVE-2026-25800HIGHquinn-proto has remote memory exhaustion from unbounded out-of-order stream reassemblyEPSS 0.8%CVE-2026-31812HIGHQuinn affected by unauthenticated remote DoS via panic in QUIC transport parameter parsingEPSS 0.6%