CVE-2018-5096

Publication date 29 January 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.6 and Thunderbird < 52.6.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
thunderbird	17.10 artful	Fixed 1:52.6.0+build1-0ubuntu0.17.10.1
	16.04 LTS xenial	Fixed 1:52.6.0+build1-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 1:52.6.0+build1-0ubuntu0.14.04.1

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

Related Ubuntu Security Notices (USN)

USN-3529-1
Thunderbird vulnerabilities
29 January 2018