---
title: "CVE-2018-0486\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-2018-0486?format=md
keywords: index, follow
---

# CVE-2018-0486

Publication date 13 January 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**6.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2018-0486?format=md#impact-score)

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## Description

Shibboleth XMLTooling-C before 1.6.3, as used in Shibboleth Service
Provider before 2.6.0 on Windows and other products, mishandles digital
signatures of user attribute data, which allows remote attackers to obtain
sensitive information or conduct impersonation attacks via a crafted DTD.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| xmltooling | 18.04 LTS bionic | Not affected |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.04 LTS xenial | Fixed 1.5.6-2ubuntu0.1 |
| 14.04 LTS trusty | Fixed 1.5.3-2+deb8u2build0.14.04.1 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

6.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 6.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0486)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-0486)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-0486)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-0486)

### Other references

* <https://shibboleth.net/community/advisories/secadv_20180112.txt>
* <https://www.cve.org/CVERecord?id=CVE-2018-0486>