What is the vulnerability ID?

The vulnerability ID is CVE-2019-12383.

What is the affected software?

The affected software is Tor Browser versions up to and excluding 8.0.1.

What is the severity of CVE-2019-12383?

The severity of CVE-2019-12383 is medium, with a severity value of 4.3.

How does the vulnerability in CVE-2019-12383 work?

The vulnerability allows remote attackers to detect the Tor Browser's UI locale by measuring a button width, even if the user has a "Don't send my language" setting.

Vulnerability/
CVE-2019-12383

medium

4.3

CWE

203

28/5/2019

4/8/2024

CVE-2019-12383

Q: Are there any references related to CVE-2019-12383?

Yes, there are references related to CVE-2019-12383. You can find them at the following URLs: [http://www.securityfocus.com/bid/108484](http://www.securityfocus.com/bid/108484), [https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55](https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55), [https://hackerone.com/reports/282748](https://hackerone.com/reports/282748).

First published: Tue May 28 2019(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Torproject Tor Browser	<8.0.1

Remedy

https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the vulnerability ID?
The vulnerability ID is CVE-2019-12383.
What is the affected software?
The affected software is Tor Browser versions up to and excluding 8.0.1.
What is the severity of CVE-2019-12383?
The severity of CVE-2019-12383 is medium, with a severity value of 4.3.
How does the vulnerability in CVE-2019-12383 work?
The vulnerability allows remote attackers to detect the Tor Browser's UI locale by measuring a button width, even if the user has a "Don't send my language" setting.
Are there any references related to CVE-2019-12383?
Yes, there are references related to CVE-2019-12383. You can find them at the following URLs: [http://www.securityfocus.com/bid/108484](http://www.securityfocus.com/bid/108484), [https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55](https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55), [https://hackerone.com/reports/282748](https://hackerone.com/reports/282748).

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