High severity · published Sep 21, 2023
CVE-2023-42805
quinn-proto Denial of Service vulnerability
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
quinn-proto is a state machine for the QUIC transport protocol. Prior to versions 0.9.5 and 0.10.5, receiving unknown QUIC frames in a QUIC packet could result in a panic. The problem has been fixed in 0.9.5 and 0.10.5 maintenance releases.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QU
quinn · quinn-rs
< 0.9.5; >= 0.10.0, < 0.10.5 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-42805
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-42805
Issue Tracking
https://github.com/quinn-rs/quinn/pull/1667
Issue Tracking
https://github.com/quinn-rs/quinn/pull/1668
Issue Tracking
https://github.com/quinn-rs/quinn/pull/1669
Vendor Advisory
https://github.com/quinn-rs/quinn/security/advisories/GHSA-q8wc-j5m9-27w3
More from quinn
7.5
CVE-2026-25800
quinn-proto has remote memory exhaustion from unbounded out-of-order stream reassembly
7.5
CVE-2024-45311
Denial of service in quinn-proto when using `Endpoint::retry()`
5.3
CVE-2026-31812
Quinn affected by unauthenticated remote DoS via panic in QUIC transport parameter parsing