CVE-2017-6056

What it is

It was discovered that a programming error in the processing of HTTPS requests in the Apache Tomcat servlet and JSP engine may result in denial of service via an infinite loop. The denial of service is easily achievable as a consequence of backporting a CVE-2016-6816 fix but not backporting the fix for Tomcat bug 57544. Distributions affected by this backporting issue include Debian (before 7.0.56-3+deb8u8 and 8.0.14-1+deb8u7 in jessie) and Ubuntu.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

7.6% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2017-02-17 07:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:21 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 7.6% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2017-02-17 07:59 UTC

Last modified

2026-06-17 01:21 UTC

Exploit probability

7.6% · EPSS, next 30 days

Weakness

CWE-835

Record status

Modified

Affected

• Canonical Ubuntu Linux 12.04
• Canonical Ubuntu Linux 14.04
• Debian Linux 8.0

Attack profile CVSS 3.0 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2017-6056.md and follow it. Check whether this project is affected by CVE-2017-6056. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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