CVE-2018-18505

Description

An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC process creation. This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	24.04 LTS noble	Fixed in 65.0+build2-0ubuntu1
	23.10 mantic	Fixed in 65.0+build2-0ubuntu1
	23.04 lunar	Fixed in 65.0+build2-0ubuntu1
	22.10 kinetic	Fixed in 65.0+build2-0ubuntu1
	22.04 LTS jammy	Fixed in 65.0+build2-0ubuntu1
	21.10 impish	Fixed in 65.0+build2-0ubuntu1
	21.04 hirsute	Fixed in 65.0+build2-0ubuntu1
	20.10 groovy	Fixed in 65.0+build2-0ubuntu1
	20.04 LTS focal	Fixed in 65.0+build2-0ubuntu1
	19.10 eoan	Fixed in 65.0+build2-0ubuntu1
	19.04 disco	Fixed in 65.0+build2-0ubuntu1
	18.10 cosmic	Fixed in 65.0+build2-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed in 65.0+build2-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed in 65.0+build2-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed in 65.0+build2-0ubuntu0.14.04.1
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
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
mozjs52	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	Ignored end of life
	20.04 LTS focal	Ignored
	19.10 eoan	Ignored end of life
	19.04 disco	Ignored end of life
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Ignored
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
mozjs60	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	Ignored end of life
	19.04 disco	Ignored end of life
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
thunderbird	24.04 LTS noble	Fixed in 1:60.5.1+build2-0ubuntu1
	23.10 mantic	Fixed in 1:60.5.1+build2-0ubuntu1
	23.04 lunar	Fixed in 1:60.5.1+build2-0ubuntu1
	22.10 kinetic	Fixed in 1:60.5.1+build2-0ubuntu1
	22.04 LTS jammy	Fixed in 1:60.5.1+build2-0ubuntu1
	21.10 impish	Fixed in 1:60.5.1+build2-0ubuntu1
	21.04 hirsute	Fixed in 1:60.5.1+build2-0ubuntu1
	20.10 groovy	Fixed in 1:60.5.1+build2-0ubuntu1
	20.04 LTS focal	Fixed in 1:60.5.1+build2-0ubuntu1
	19.10 eoan	Fixed in 1:60.5.1+build2-0ubuntu1
	19.04 disco	Fixed in 1:60.5.1+build2-0ubuntu1
	18.10 cosmic	Fixed in 1:60.5.1+build2-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed in 1:60.5.1+build2-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed in 1:60.5.1+build2-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed in 1:60.5.1+build2-0ubuntu0.14.04.1

Notes

tyhicks

mozjs contains a copy of the SpiderMonkey JavaScript engine

Severity score breakdown

CVSS version: CVSS v3.0

Base score 10.0 · Critical

Base metrics

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

Scores

Parameter	Value
Base score	10.0 · Critical
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-3897-1
Thunderbird vulnerabilities
26 February 2019

USN-3874-1
Firefox vulnerabilities
30 January 2019