Security readout for executives and security teams
Plain-English summary
Suricata 4.0.4 has a parsing flaw in its EtherNet/IP handling. A malformed protocol message can make the parser read past allocated data. The available source bundle does not provide CVSS, impact detail, or confirmed exploitation evidence.
Executive priority
Prioritize remediation for Suricata 4.0.4 sensors monitoring untrusted or industrial protocol traffic. Business urgency is moderate because confirmed exploitation and severity scoring are absent, but network parser memory flaws can affect monitoring reliability.
Technical view
The issue is in DecodeENIPPDU in app-layer-enip-commmon.c. An integer overflow during a length check can lead to an out-of-bounds read while parsing a malformed EtherNet/IP PDU in Suricata 4.0.4.
Likely exposure
Exposure appears limited to deployments running Suricata 4.0.4 where inspected traffic can include EtherNet/IP PDUs. The bundle does not identify other affected versions, configurations, or platforms.
Exploitation context
The source bundle does not cite active exploitation, public exploit use, or CISA KEV listing. Exploitability details are incomplete; treat this as a parser memory-safety issue reachable through malformed inspected network traffic.
Researcher notes
Key missing data includes CVSS, CWE, exact affected range, fixed version statement, and practical impact beyond out-of-bounds read. The Suricata 4.0.5 announcement is the only vendor reference in the bundle.
Mitigation direction
- Inventory Suricata sensors and identify any running version 4.0.4.
- Review the Suricata 4.0.5 vendor announcement and current vendor guidance.
- Plan upgrade or replacement of affected Suricata 4.0.4 deployments.
- Limit untrusted EtherNet/IP traffic reaching Suricata sensors where operationally feasible.
Validation and detection
- Confirm Suricata version on each IDS or IPS sensor.
- Check whether sensors inspect EtherNet/IP traffic on monitored links.
- Review Suricata logs for crashes or parser errors around EtherNet/IP traffic.
- Verify upgrade status against vendor release guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-10244 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://suricata-ids.org/2018/07/18/suricata-4-0-5-available/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.