CVE-2018-12016

Publication date 7 June 2018

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

libephymain.so in GNOME Web (aka Epiphany) through 3.28.2.1 allows remote attackers to cause a denial of service (application crash) via certain window.open and document.write calls.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
epiphany-browser	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Vulnerable
	17.10 artful	Ignored end of life
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Not in release

Notes

seth-arnold

cosmic and newer fixed in 3.28.2.1-1ubuntu1

mdeslaur

fixed in bionic-updates but not in bionic-security

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H