// 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
* 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
  • 2024-05-08 EPSS Updated
  • 2024-08-02 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
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