// For flags

CVE-2024-1765

Unlimited resource allocation by QUIC CRYPTO frames flooding in quiche

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client.
A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake.
Exploitation was possible for the duration of the connection which could be extended by the attacker. 
quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.

Cloudflare Quiche (hasta la versión 0.19.1/0.20.0) se vio afectado por una vulnerabilidad de asignación de recursos ilimitada que provocó un rápido aumento del uso de memoria del sistema que ejecuta el servidor o cliente quiche. Un atacante remoto podría aprovechar esta vulnerabilidad enviando repetidamente un número ilimitado de fotogramas 1-RTT CRYPTO después de completar previamente el protocolo de enlace QUIC. La explotación era posible mientras durara la conexión, que el atacante podía ampliar. quiche 0.19.2 y 0.20.1 son las primeras versiones que contienen la solución para este problema.

*Credits: Marten Seeman (@marten-seemann)
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-22 CVE Reserved
  • 2024-03-12 CVE Published
  • 2024-03-13 EPSS Updated
  • 2024-08-01 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
  • CAPEC-125: Flooding
  • CAPEC-130: Excessive Allocation
  • CAPEC-272: Protocol Manipulation
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cloudflare
Search vendor "Cloudflare"
 Quiche
Search vendor "Cloudflare" for product "Quiche"
 >= 0.15.0 <= <0.19.1
Search vendor "Cloudflare" for product "Quiche" and version " >= 0.15.0 <= <0.19.1"
en
Affected
Cloudflare
Search vendor "Cloudflare"
 Quiche
Search vendor "Cloudflare" for product "Quiche"
 >= 0.20.0 < 0.20.1
Search vendor "Cloudflare" for product "Quiche" and version " >= 0.20.0 < 0.20.1"
en
Affected