CVE-2019-12383

Published: 28 May 2019

Tor Browser before 8.0.1 has an information exposure vulnerability. It allows remote attackers to detect the browser's UI locale by measuring a button width, even if the user has a "Don't send my language" setting.

Notes

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

Priority

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package	Release	Status
firefox Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	cosmic	Not vulnerable
	disco	Not vulnerable
	trusty	Does not exist
	upstream	Not vulnerable
	xenial	Not vulnerable
firefox-esr Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Not vulnerable
	xenial	Does not exist
mozjs38 Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Not vulnerable
	xenial	Does not exist
mozjs52 Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	cosmic	Not vulnerable
	disco	Not vulnerable
	trusty	Does not exist
	upstream	Not vulnerable
	xenial	Does not exist
mozjs60 Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Not vulnerable
	disco	Not vulnerable
	trusty	Does not exist
	upstream	Not vulnerable
	xenial	Does not exist
thunderbird Launchpad, Ubuntu, Debian	bionic	Not vulnerable
	cosmic	Not vulnerable
	disco	Not vulnerable
	trusty	Does not exist
	upstream	Not vulnerable
	xenial	Not vulnerable

Severity score breakdown

Parameter	Value
Base score	4.3
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References

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