---
title: "CVE-2018-1106\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-2018-1106?format=md
keywords: index, follow
---

# CVE-2018-1106

Publication date 23 April 2018

Last updated 25 August 2025

---

Ubuntu priority

**High**

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

## Cvss 3 Severity Score

**5.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2018-1106?format=md#impact-score)

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## Description

An authentication bypass flaw has been found in PackageKit before 1.1.10
that allows users without administrator privileges to install signed
packages. A local attacker can use this vulnerability to install vulnerable
packages to further compromise a system.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2018-1106?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| packagekit | 17.10 artful | Fixed 1.1.7-1ubuntu0.1 |
| 16.04 LTS xenial | Not affected |
| 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-2018-1106?format=md#patch-details)

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

introduced by f176976e24e8c17b80eff222572275517c16bdad
introduced in 1.0.10

### 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 |
| --- | --- |
| packagekit | * Upstream:   [7e8a790](https://github.com/hughsie/PackageKit/commit/7e8a7905ea9abbd1f384f05f36a4458682cd4697) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1106)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-1106)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-1106)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-1106)

### Related Ubuntu Security Notices (USN)

+ [USN-3634-1](https://usn.ubuntu.com/USN-3634-1)
+ PackageKit vulnerability
+ 24 April 2018

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2018-1106>