CVE-2024-38534 Suricata modbus: txs without responses are never freed

2024-07-1114:47:47

CWE-770

GitHub_M

www.cve.org

suricata

upgrade

modbus

resource accumulation

network security

CVSS3

7.5

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

EPSS

0.001

Percentile

23.5%

JSON

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Crafted modbus traffic can lead to unlimited resource accumulation within a flow. Upgrade to 7.0.6. Set a limited stream.reassembly.depth to reduce the issue.

CNA Affected

[
  {
    "vendor": "OISF",
    "product": "suricata",
    "versions": [
      {
        "version": "< 7.0.6",
        "status": "affected"
      }
    ]
  }
]