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CVE Record

CVE-2019-1010249: The Linux Foundation ONOS 2.0.0 and earlier is affected by: Integer Overflow.

The Linux Foundation ONOS 2.0.0 and earlier is affected by: Integer Overflow. The impact is: A network administrator (or attacker) can install unintended flow rules in the switch by mistake. The component is: createFlow() and createFlows() functions in FlowWebResource.java (RESTful service). The attack vector is: network management and connectivity.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

ONOS 2.0.0 and earlier has an integer overflow issue in its REST flow-management code. The stated business risk is unintended switch flow rules being installed, which could disrupt network policy or traffic handling. The public record does not provide a severity score, confirmed exploit activity, or a fixed version.

Executive priority

Treat this as an exposure review rather than a confirmed emergency. Prioritize quickly if ONOS manages production switches, segmentation, or critical connectivity, because unintended flow rules can affect network control. Urgency is lower where management access is tightly restricted and no vulnerable version is present.

Technical view

CVE-2019-1010249 affects ONOS createFlow() and createFlows() in FlowWebResource.java, part of the RESTful service. The CVE describes an integer overflow where a network administrator or attacker can install unintended flow rules. The listed attack vector is network management and connectivity.

Likely exposure

Exposure is likely limited to environments running ONOS 2.0.0 or earlier, especially where REST management interfaces are reachable beyond trusted administrators. The sources do not name downstream distributions, CPEs, or internet-wide exposure data.

Exploitation context

The source bundle states KEV is false and provides no cited evidence of active exploitation. The described path involves network management access to ONOS REST flow APIs, but the public record does not provide exploit prerequisites beyond that context.

Researcher notes

The record names the affected functions and impact, but omits CVSS, CWE, fixed version, exploit status, and detailed advisory text. Analysis should remain conservative until vendor-maintained ONOS guidance or patch history is confirmed.

Mitigation direction

  • Identify ONOS deployments and confirm whether versions are 2.0.0 or earlier.
  • Check ONOS or Linux Foundation guidance for fixed releases or recommended workarounds.
  • Restrict ONOS REST management access to trusted administrative networks and users.
  • Review recent flow-rule changes for unintended or policy-violating entries.
  • Prioritize remediation where ONOS controls production switching or segmentation policy.

Validation and detection

  • Inventory ONOS controllers and record exact deployed versions.
  • Confirm whether FlowWebResource REST functionality is enabled or reachable.
  • Review access controls for ONOS management and REST endpoints.
  • Compare installed flow rules against approved network policy.
  • Monitor ONOS logs for unexpected flow creation activity.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2019-1010249 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
The Linux FoundationONOS2.0.0 and earlierListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.