---
title: CVE-2017-5470
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-2017-5470
---

# CVE-2017-5470

Publication date 14 June 2017

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**9.8 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2017-5470#impact-score)

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## Description

Memory safety bugs were reported in Firefox 53 and Firefox ESR 52.1. Some
of these bugs showed evidence of memory corruption and we presume that with
enough effort that some of these could be exploited to run arbitrary code.
This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and
Thunderbird < 52.2.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2017-5470#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firefox | 24.04 LTS noble | Fixed 54.0+build3-0ubuntu1 |
| 23.10 mantic | Fixed 54.0+build3-0ubuntu1 |
| 23.04 lunar | Fixed 54.0+build3-0ubuntu1 |
| 22.10 kinetic | Fixed 54.0+build3-0ubuntu1 |
| 22.04 LTS jammy | Fixed 54.0+build3-0ubuntu1 |
| 21.10 impish | Fixed 54.0+build3-0ubuntu1 |
| 21.04 hirsute | Fixed 54.0+build3-0ubuntu1 |
| 20.10 groovy | Fixed 54.0+build3-0ubuntu1 |
| 20.04 LTS focal | Fixed 54.0+build3-0ubuntu1 |
| 19.10 eoan | Fixed 54.0+build3-0ubuntu1 |
| 19.04 disco | Fixed 54.0+build3-0ubuntu1 |
| 18.10 cosmic | Fixed 54.0+build3-0ubuntu1 |
| 18.04 LTS bionic | Fixed 54.0+build3-0ubuntu1 |
| 17.10 artful | Fixed 54.0+build3-0ubuntu1 |
| 17.04 zesty | Fixed 54.0+build3-0ubuntu0.17.04.1 |
| 16.10 yakkety | Fixed 54.0+build3-0ubuntu0.16.10.1 |
| 16.04 LTS xenial | Fixed 54.0+build3-0ubuntu0.16.04.1 |
| 14.04 LTS trusty | Fixed 54.0+build3-0ubuntu0.14.04.1 |
| mozjs38 | 24.04 LTS noble | Not in release |
| 23.10 mantic | Not in release |
| 23.04 lunar | Not in release |
| 22.10 kinetic | Not in release |
| 22.04 LTS jammy | Not in release |
| 21.10 impish | Not in release |
| 21.04 hirsute | Not in release |
| 20.10 groovy | Not in release |
| 20.04 LTS focal | Not in release |
| 19.10 eoan | Not in release |
| 19.04 disco | Not in release |
| 18.10 cosmic | Not in release |
| 18.04 LTS bionic | Ignored |
| 17.10 artful | Ignored end of life |
| 17.04 zesty | Ignored end of life |
| 16.10 yakkety | Not in release |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |
| thunderbird | 24.04 LTS noble | Fixed 1:52.2.1+build1-0ubuntu1 |
| 23.10 mantic | Fixed 1:52.2.1+build1-0ubuntu1 |
| 23.04 lunar | Fixed 1:52.2.1+build1-0ubuntu1 |
| 22.10 kinetic | Fixed 1:52.2.1+build1-0ubuntu1 |
| 22.04 LTS jammy | Fixed 1:52.2.1+build1-0ubuntu1 |
| 21.10 impish | Fixed 1:52.2.1+build1-0ubuntu1 |
| 21.04 hirsute | Fixed 1:52.2.1+build1-0ubuntu1 |
| 20.10 groovy | Fixed 1:52.2.1+build1-0ubuntu1 |
| 20.04 LTS focal | Fixed 1:52.2.1+build1-0ubuntu1 |
| 19.10 eoan | Fixed 1:52.2.1+build1-0ubuntu1 |
| 19.04 disco | Fixed 1:52.2.1+build1-0ubuntu1 |
| 18.10 cosmic | Fixed 1:52.2.1+build1-0ubuntu1 |
| 18.04 LTS bionic | Fixed 1:52.2.1+build1-0ubuntu1 |
| 17.10 artful | Fixed 1:52.2.1+build1-0ubuntu1 |
| 17.04 zesty | Fixed 1:52.2.1+build1-0ubuntu0.17.04.1 |
| 16.10 yakkety | Fixed 1:52.2.1+build1-0ubuntu0.16.10.1 |
| 16.04 LTS xenial | Fixed 1:52.2.1+build1-0ubuntu0.16.04.1 |
| 14.04 LTS trusty | Fixed 1:52.2.1+build1-0ubuntu0.14.04.1 |

---

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

## Notes

---

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

mozjs38 contains a copy of the SpiderMonkey JavaScript engine

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

9.8 · Critical

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.8 · Critical |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5470)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-5470)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-5470)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-5470)

### Related Ubuntu Security Notices (USN)

+ [USN-3315-1](https://usn.ubuntu.com/USN-3315-1)
+ Firefox vulnerabilities
+ 15 June 2017

+ [USN-3321-1](https://usn.ubuntu.com/USN-3321-1)
+ Thunderbird vulnerabilities
+ 5 July 2017

### Other references

* <https://www.mozilla.org/en-US/security/advisories/mfsa2017-15/>
* <https://www.cve.org/CVERecord?id=CVE-2017-5470>