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CVE Record

CVE-2018-12545: In Eclipse Jetty version 9.3.x and 9.4.x, the server is vulnerable to Denial of Service conditions if a rem...

In Eclipse Jetty version 9.3.x and 9.4.x, the server is vulnerable to Denial of Service conditions if a remote client sends either large SETTINGs frames container containing many settings, or many small SETTINGs frames. The vulnerability is due to the additional CPU and memory allocations required to handle changed settings.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Eclipse Jetty 9.3.x and 9.4.x can be forced into denial-of-service conditions by remote clients that send oversized or repeated SETTINGS frames. The issue consumes extra CPU and memory, potentially degrading or stopping services that rely on affected Jetty versions.

Executive priority

Treat this as a service-availability risk. Prioritize remediation for externally reachable Jetty-based systems, but avoid emergency exploitation claims because the provided sources do not show active exploitation.

Technical view

CVE-2018-12545 is a CWE-400 resource-consumption flaw in Eclipse Jetty 9.3.x and 9.4.x. Handling large SETTINGS frames with many settings, or many small SETTINGS frames, causes additional CPU and memory allocation. The provided sources do not include CVSS details.

Likely exposure

Exposure is most likely in Java services, embedded servers, or dependent platforms running Eclipse Jetty 9.3.x or 9.4.x, especially where remote clients can reach the affected listener.

Exploitation context

The source bundle supports remote denial-of-service potential, but it does not cite active exploitation. KEV status is false. Apache project references show downstream dependency upgrades, not confirmed exploitation in the wild.

Researcher notes

The key behavior is resource exhaustion during SETTINGS frame handling. Evidence is strong for affected Jetty branches and DoS class, but incomplete for exact fixed versions, exploit prevalence, and CVSS scoring in the supplied bundle.

Mitigation direction

  • Inventory applications and platforms that bundle Eclipse Jetty 9.3.x or 9.4.x.
  • Upgrade Jetty or vendor packages using Eclipse, distribution, or product guidance.
  • Prioritize internet-facing services and services with untrusted client access.
  • Apply resource monitoring and alerting for abnormal CPU or memory pressure.
  • Check downstream products that embed Jetty for vendor-specific updates.

Validation and detection

  • Confirm the deployed Jetty version in application dependencies and runtime packaging.
  • Identify services exposing affected Jetty listeners to untrusted networks.
  • Review vendor advisories for fixed package versions applicable to your deployment.
  • Check monitoring for unexplained CPU or memory spikes on Jetty services.
  • Track dependency scans for CVE-2018-12545 until all instances are remediated.
Prepared
Confidence
medium
Sources
6

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

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.

cwe · low confidence lookup

CWE-400: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-12545 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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
10Source 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 Eclipse FoundationEclipse Jetty9.3.0, unspecifiedListed
Weakness

CWE details

CWE-400

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

CWE-400 · source CWE mapping

Uncontrolled Resource Consumption

Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs