---
title: "CVE-2018-12385\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-2018-12385?format=md
keywords: index, follow
---

# CVE-2018-12385

Publication date 23 September 2018

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**7.0 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2018-12385?format=md#impact-score)

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## Description

A potentially exploitable crash in TransportSecurityInfo used for SSL can
be triggered by data stored in the local cache in the user profile
directory. This issue is only exploitable in combination with another
vulnerability allowing an attacker to write data into the local cache or
from locally installed malware. This issue also triggers a non-exploitable
startup crash for users switching between the Nightly and Release versions
of Firefox if the same profile is used. This vulnerability affects
Thunderbird < 60.2.1, Firefox ESR < 60.2.1, and Firefox < 62.0.2.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firefox | 18.04 LTS bionic | Fixed 62.0.3+build1-0ubuntu0.18.04.1 |
| 16.04 LTS xenial | Fixed 62.0.3+build1-0ubuntu0.16.04.2 |
| 14.04 LTS trusty | Fixed 62.0.3+build1-0ubuntu0.14.04.2 |
| thunderbird | 18.04 LTS bionic | Fixed 1:60.2.1+build1-0ubuntu0.18.04.2 |
| 16.04 LTS xenial | Fixed 1:60.2.1+build1-0ubuntu0.16.04.4 |
| 14.04 LTS trusty | Fixed 1:60.2.1+build1-0ubuntu0.14.04.2 |

---

* [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**

7.0 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.0 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12385)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2018-12385)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2018-12385)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2018-12385)

### Related Ubuntu Security Notices (USN)

+ [USN-3778-1](https://usn.ubuntu.com/USN-3778-1)
+ Firefox vulnerabilities
+ 3 October 2018

+ [USN-3793-1](https://usn.ubuntu.com/USN-3793-1)
+ Thunderbird vulnerabilities
+ 15 October 2018

### Other references

* <https://www.mozilla.org/en-US/security/advisories/mfsa2018-22/#CVE-2018-12385>
* <https://www.mozilla.org/en-US/security/advisories/mfsa2018-23/#CVE-2018-12385>
* <https://www.mozilla.org/en-US/security/advisories/mfsa2018-25/#CVE-2018-12385>
* <https://www.cve.org/CVERecord?id=CVE-2018-12385>