CVE-2019-17016

Published: 8 January 2020

When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Notes

Author	Note
tyhicks	mozjs contains a copy of the SpiderMonkey JavaScript engine

Priority

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package	Release	Status
mozjs60 Launchpad, Ubuntu, Debian	upstream	Needs triage
	trusty	Does not exist
	xenial	Does not exist
	bionic	Does not exist
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Does not exist
	hirsute	Does not exist
	jammy	Does not exist
	groovy	Does not exist
	impish	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
firefox Launchpad, Ubuntu, Debian	hirsute	Released (72.0.1+build1-0ubuntu1)
	jammy	Released (72.0.1+build1-0ubuntu1)
	bionic	Released (72.0.1+build1-0ubuntu0.18.04.1)
	disco	Released (72.0.1+build1-0ubuntu0.19.04.1)
	eoan	Released (72.0.1+build1-0ubuntu0.19.10.1)
	focal	Released (72.0.1+build1-0ubuntu1)
	groovy	Released (72.0.1+build1-0ubuntu1)
	impish	Released (72.0.1+build1-0ubuntu1)
	kinetic	Released (72.0.1+build1-0ubuntu1)
	lunar	Released (72.0.1+build1-0ubuntu1)
	trusty	Does not exist
	upstream	Released (72.0)
	xenial	Released (72.0.1+build1-0ubuntu0.16.04.1)
thunderbird Launchpad, Ubuntu, Debian	hirsute	Released (1:68.4.1+build1-0ubuntu1)
	jammy	Released (1:68.4.1+build1-0ubuntu1)
	bionic	Released (1:68.4.1+build1-0ubuntu0.18.04.1)
	disco	Ignored (end of life)
	eoan	Released (1:68.4.1+build1-0ubuntu0.19.10.1)
	focal	Released (1:68.4.1+build1-0ubuntu1)
	groovy	Released (1:68.4.1+build1-0ubuntu1)
	impish	Released (1:68.4.1+build1-0ubuntu1)
	kinetic	Released (1:68.4.1+build1-0ubuntu1)
	lunar	Released (1:68.4.1+build1-0ubuntu1)
	trusty	Does not exist
	upstream	Released (68.4.1)
	xenial	Released (1:68.7.0+build1-0ubuntu0.16.04.2)
mozjs38 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	jammy	Does not exist
	bionic	Needs triage
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	groovy	Does not exist
	impish	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
mozjs52 Launchpad, Ubuntu, Debian	hirsute	Does not exist
	jammy	Does not exist
	bionic	Needs triage
	disco	Ignored (end of life)
	eoan	Ignored (end of life)
	focal	Needs triage
	groovy	Ignored (end of life)
	impish	Does not exist
	kinetic	Does not exist
	lunar	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist

Severity score breakdown

Parameter	Value
Base score	6.1
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

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