Vulnerability Database

383,304

Total vulnerabilities in the database

CVE-2018-12545 — org.eclipse.jetty / jetty-server

Allocation of Resources Without Limits or Throttling

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.

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
Software Affected versions
Maven icon org.eclipse.jetty / jetty-server >= 9.4.0, < 9.4.12.v20180830
Maven icon org.eclipse.jetty / jetty-server >= 9.3.0, < 9.3.25.v20180904
eclipse / jetty = 9.3.0-20150601
eclipse / jetty = 9.3.0-20150608
eclipse / jetty = 9.3.0-20150612
eclipse / jetty = 9.3.0-maintenance0
eclipse / jetty = 9.3.0-maintenance1
eclipse / jetty = 9.3.0-maintenance2
eclipse / jetty = 9.3.0-rc0
eclipse / jetty = 9.3.0-rc1
eclipse / jetty = 9.3.1-20150714
eclipse / jetty = 9.3.2-20150730
eclipse / jetty = 9.3.3-20150825
eclipse / jetty = 9.3.3-20150827
eclipse / jetty = 9.3.4-20151005
eclipse / jetty = 9.3.4-20151007
eclipse / jetty = 9.3.4-rc0
eclipse / jetty = 9.3.4-rc1
eclipse / jetty = 9.3.5-20151012
eclipse / jetty = 9.3.6-20151106
eclipse / jetty = 9.3.7-20160115
eclipse / jetty = 9.3.7-rc0
eclipse / jetty = 9.3.7-rc1
eclipse / jetty = 9.3.8-20160311
eclipse / jetty = 9.3.8-20160314
eclipse / jetty = 9.3.8-rc0
eclipse / jetty = 9.3.9-20160517
eclipse / jetty = 9.3.9-maintenance_0
eclipse / jetty = 9.3.9-maintenance_1
eclipse / jetty = 9.3.10-20160621
eclipse / jetty = 9.3.10-maintenance_0
eclipse / jetty = 9.3.11-20160721
eclipse / jetty = 9.3.11-maintenance_0
eclipse / jetty = 9.3.12-20160915
eclipse / jetty = 9.3.13-20161014
eclipse / jetty = 9.3.13-maintenance_0
eclipse / jetty = 9.3.14-20161028
eclipse / jetty = 9.3.15-20161220
eclipse / jetty = 9.3.16-20170119
eclipse / jetty = 9.3.16-20170120
eclipse / jetty = 9.3.17-20170317
eclipse / jetty = 9.3.17-rc0
eclipse / jetty = 9.3.18-20170406
eclipse / jetty = 9.3.19-20170502
eclipse / jetty = 9.3.20-20170531
eclipse / jetty = 9.3.21-20170918
eclipse / jetty = 9.3.21-maintenance_0
eclipse / jetty = 9.3.21-rc0
eclipse / jetty = 9.3.22-20171030
eclipse / jetty = 9.3.23-20180228
eclipse / jetty = 9.3.24-20180605
eclipse / jetty = 9.4.0-20161207
eclipse / jetty = 9.4.0-20161208
eclipse / jetty = 9.4.0-20180619
eclipse / jetty = 9.4.0-maintenance_0
eclipse / jetty = 9.4.0-maintenance_1
eclipse / jetty = 9.4.0-rc0
eclipse / jetty = 9.4.0-rc1
eclipse / jetty = 9.4.0-rc2
eclipse / jetty = 9.4.0-rc3
eclipse / jetty = 9.4.1-20170120
eclipse / jetty = 9.4.1-20180619
eclipse / jetty = 9.4.2-20170220
eclipse / jetty = 9.4.2-20180619
eclipse / jetty = 9.4.3-20170317
eclipse / jetty = 9.4.3-20180619
eclipse / jetty = 9.4.4-20170410
eclipse / jetty = 9.4.4-20170414
eclipse / jetty = 9.4.4-20180619
eclipse / jetty = 9.4.5-20170502
eclipse / jetty = 9.4.5-20180619
eclipse / jetty = 9.4.6-20170531
eclipse / jetty = 9.4.6-20180619
eclipse / jetty = 9.4.7-20170914
eclipse / jetty = 9.4.7-20180619
eclipse / jetty = 9.4.7-rc0
eclipse / jetty = 9.4.8-20171121
eclipse / jetty = 9.4.8-20180619
eclipse / jetty = 9.4.9-20180320
eclipse / jetty = 9.4.10-20180503
eclipse / jetty = 9.4.10-rc0
eclipse / jetty = 9.4.10-rc1
eclipse / jetty = 9.4.11-20180605
eclipse / jetty = 9.4.12-rc0
eclipse / jetty = 9.4.12-rc1
eclipse / jetty = 9.4.12-rc2
fedoraproject / fedora = 28

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.