// For flags

CVE-2024-32663

Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).

Suricata es un sistema de detección de intrusiones en la red, un sistema de prevención de intrusiones y un motor de monitoreo de seguridad de la red. Antes de 7.0.5 y 6.0.19, una pequeña cantidad de tráfico HTTP/2 puede hacer que Suricata utilice una gran cantidad de memoria. El problema se solucionó en Suricata 7.0.5 y 6.0.19. Los workarounds incluyen deshabilitar el analizador HTTP/2 y reducir el valor `app-layer.protocols.http2.max-table-size` (el valor predeterminado es 65536).

*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
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-04-16 CVE Reserved
  • 2024-04-23 CVE Published
  • 2024-08-02 CVE Updated
  • 2025-04-15 EPSS 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
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
OISF
Search vendor "OISF"
 Suricata
Search vendor "OISF" for product "Suricata"
 >= 7.0.0 <= 7.0.4
Search vendor "OISF" for product "Suricata" and version " >= 7.0.0 <= 7.0.4"
en
Affected
OISF
Search vendor "OISF"
 Suricata
Search vendor "OISF" for product "Suricata"
 >= 6.0.0 <= 6.0.18
Search vendor "OISF" for product "Suricata" and version " >= 6.0.0 <= 6.0.18"
en
Affected