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Vulnerability · Published Jul 11, 2024 · Assigned by GitHub_M

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

High 7.5

In plain English

A high-severity resource allocation without limits in suricata from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.9%top 41.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20suricata7.0.6-r0ALPINE-CVE-2024-38534
Alpine:v3.21suricata7.0.6-r0ALPINE-CVE-2024-38534
Alpine:v3.22suricata7.0.6-r0ALPINE-CVE-2024-38534
Alpine:v3.23suricata7.0.6-r0ALPINE-CVE-2024-38534
Alpine:v3.24suricata7.0.6-r0ALPINE-CVE-2024-38534
Debian:13suricata1:7.0.6-1DEBIAN-CVE-2024-38534
Debian:14suricata1:7.0.6-1DEBIAN-CVE-2024-38534
Ubuntu:22.04:LTSsuricatano fix listedUBUNTU-CVE-2024-38534
Ubuntu:24.04:LTSsuricatano fix listedUBUNTU-CVE-2024-38534

Affected products (as reported)

VendorProductVersions
OISF suricata < 7.0.6

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References