CVE-2018-18356

Publication date 11 December 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An integer overflow in path handling lead to a use after free in Skia in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
chromium-browser	18.10 cosmic	Fixed 71.0.3578.80-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 71.0.3578.80-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 71.0.3578.80-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
firefox	18.10 cosmic	Fixed 65.0.1+build2-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 65.0.1+build2-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 65.0.1+build2-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 65.0.1+build2-0ubuntu0.14.04.1
thunderbird	18.10 cosmic	Fixed 1:60.5.1+build2-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 1:60.5.1+build2-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 1:60.5.1+build2-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 1:60.5.1+build2-0ubuntu0.14.04.1

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.8 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	8.8 · High
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-3897-1
Thunderbird vulnerabilities
26 February 2019

USN-3896-1
Firefox vulnerabilities
26 February 2019