// For flags

CVE-2016-4817

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted packet.

lib/http2/connection.c en H2O en versiones anteriores a 1.7.3 y 2.x en versiones anteriores a 2.0.0-beta5 no maneja correctamente desconexión de HTTP/2, lo que permite a atacantes remotos provocar una denegación de servicio (uso después de liberación de memoria y caída de aplicación) o posiblemente ejecutar código arbitrario a través de un paquete manipulado.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-05-17 CVE Reserved
  • 2016-06-19 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Dena
Search vendor "Dena"
 H2o
Search vendor "Dena" for product "H2o"
 <= 1.7.2
Search vendor "Dena" for product "H2o" and version " <= 1.7.2"
-
Affected
Dena
Search vendor "Dena"
 H2o
Search vendor "Dena" for product "H2o"
 <= 2.0.0
Search vendor "Dena" for product "H2o" and version " <= 2.0.0"
beta4
Affected