---
title: "CVE-2017-15706\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2017-15706?format=md
keywords: index, follow
---

# CVE-2017-15706

Publication date 31 January 2018

Last updated 25 August 2025

---

Ubuntu priority

**Negligible**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2017-15706?format=md#impact-score)

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## Description

As part of the fix for bug 61201, the documentation for Apache Tomcat
9.0.0.M22 to 9.0.1, 8.5.16 to 8.5.23, 8.0.45 to 8.0.47 and 7.0.79 to 7.0.82
included an updated description of the search algorithm used by the CGI
Servlet to identify which script to execute. The update was not correct. As
a result, some scripts may have failed to execute as expected and other
scripts may have been executed unexpectedly. Note that the behaviour of the
CGI servlet has remained unchanged in this regard. It is only the
documentation of the behaviour that was wrong and has been corrected.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| tomcat7 | 18.04 LTS bionic | Not affected |
| 17.10 artful | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |
| tomcat8 | 18.04 LTS bionic | Not affected |
| 17.10 artful | Fixed 8.5.21-1ubuntu1.1 |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |
| tomcat8.0 | 18.04 LTS bionic | Not in release |
| 17.10 artful | Ignored end of life |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2017-15706?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| tomcat7 | * Upstream:   <https://svn.apache.org/r1814828> |
| tomcat8 | * Upstream:   <https://svn.apache.org/r1814827> * Upstream:   <https://svn.apache.org/r1814826> |
| tomcat8.0 | * Upstream:   <https://svn.apache.org/r1814827> * Upstream:   <https://svn.apache.org/r1814826> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | Low |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15706)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-15706)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-15706)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-15706)

### Related Ubuntu Security Notices (USN)

+ [USN-3665-1](https://usn.ubuntu.com/USN-3665-1)
+ Tomcat vulnerabilities
+ 30 May 2018

### Other references

* <https://lists.apache.org/thread.html/e1ef853fc0079cdb55befbd2dac042934e49288b476d5f6a649e5da2@%3Cannounce.tomcat.apache.org%3E>
* <https://www.cve.org/CVERecord?id=CVE-2017-15706>