CVE-2024-32663 Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation

2024-05-0714:48:20

CWE-400

CWE-770

GitHub_M

www.cve.org

suricata

http2

vulnerability

resource starvation

memory

http/2 parser

prevention

network security

system

update

workaround

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.4%

JSON

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).

CNA Affected

[
  {
    "vendor": "OISF",
    "product": "suricata",
    "versions": [
      {
        "version": ">= 7.0.0, <= 7.0.4",
        "status": "affected"
      },
      {
        "version": ">= 6.0.0, <= 6.0.18",
        "status": "affected"
      }
    ]
  }
]