What is the CVSS score of CVE-2020-13935?

CVE-2020-13935 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 87.6%.

Is there a public PoC exploit available for CVE-2020-13935?

Yes, a public proof-of-concept exploit is available for CVE-2020-13935. Prioritise patching immediately. EPSS: 87.6%.

Is there a patch available for CVE-2020-13935?

Yes, a patch is available for CVE-2020-13935. Update the affected software to the latest version immediately.

Tomcat CVE-2020-13935

HIGH

Loop with Unreachable Exit Condition (Infinite Loop) (CWE-835)

2020-07-14 security@apache.org

GHSA-m7jv-hq7h-mq7c

Apache Denial Of Service Tomcat Debian Linux Oncommand System Manager Leap Ubuntu Linux Epolicy Orchestrator Agile Engineering Data Management Agile Plm Blockchain Platform Commerce Guided Search Communications Cloud Native Core Policy Communications Instant Messaging Server Fmw Platform Instantis Enterprisetrack Managed File Transfer Mysql Enterprise Monitor Siebel Ui Framework Workload Manager

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Jul 14, 2020 - 15:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 maven packages depend on org.apache.tomcat:tomcat (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 10.0.0-M1.

DescriptionNVD

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

AnalysisAI

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-835. The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. Affected products include: Apache Tomcat, Debian Debian Linux, Netapp Oncommand System Manager, Opensuse Leap, Canonical Ubuntu Linux.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.