National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-12383 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N (V3 legend)
Impact Score: 1.4
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/108484
https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55 Mailing List Patch Third Party Advisory
https://hackerone.com/reports/282748 Issue Tracking Third Party Advisory
https://trac.torproject.org/projects/tor/ticket/24056 Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:torproject:tor_browser:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
8.0.1


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-12383
NVD Published Date:
05/27/2019
NVD Last Modified:
05/29/2019