CVE-2019-11720

Description

Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering. This vulnerability affects Firefox < 68.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
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
firefox	24.04 LTS noble	Fixed 68.0+build3-0ubuntu1
	23.10 mantic	Fixed 68.0+build3-0ubuntu1
	23.04 lunar	Fixed 68.0+build3-0ubuntu1
	22.10 kinetic	Fixed 68.0+build3-0ubuntu1
	22.04 LTS jammy	Fixed 68.0+build3-0ubuntu1
	21.10 impish	Fixed 68.0+build3-0ubuntu1
	21.04 hirsute	Fixed 68.0+build3-0ubuntu1
	20.10 groovy	Fixed 68.0+build3-0ubuntu1
	20.04 LTS focal	Fixed 68.0+build3-0ubuntu1
	19.10 eoan	Fixed 68.0+build3-0ubuntu1
	19.04 disco	Fixed 68.0+build3-0ubuntu0.19.04.1
	18.10 cosmic	Fixed 68.0+build3-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 68.0+build3-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 68.0+build3-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
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
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

Notes

tyhicks

mozjs contains a copy of the SpiderMonkey JavaScript engine

Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

USN-4054-1
Firefox vulnerabilities
12 July 2019