---
title: "CVE-2014-10070\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-2014-10070?format=md
keywords: index, follow
---

# CVE-2014-10070

Publication date 27 February 2018

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2014-10070?format=md#impact-score)

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## Description

zsh before 5.0.7 allows evaluation of the initial values of integer
variables imported from the environment (instead of treating them as
literal numbers). That could allow local privilege escalation, under some
specific and atypical conditions where zsh is being invoked in
privilege-elevation contexts when the environment has not been properly
sanitized, such as when zsh is invoked by sudo on systems where "env\_reset"
has been disabled.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| zsh | 17.10 artful | Fixed 5.2-5ubuntu1.1 |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Fixed 5.0.2-3ubuntu6.1 |

---

* [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**

7.8 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-10070)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-10070)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-10070)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-10070)

### Related Ubuntu Security Notices (USN)

+ [USN-3593-1](https://usn.ubuntu.com/USN-3593-1)
+ Zsh vulnerabilities
+ 8 March 2018

### Other references

* <http://zsh.sourceforge.net/releases.html>
* <https://sourceforge.net/p/zsh/code/ci/546203a770cec329e73781c3c8ab1078390aee72>
* <https://www.cve.org/CVERecord?id=CVE-2014-10070>