PT-2019-12773 · Tor+2 · Tor Browser+1

Published 2019-05-27 · Updated 2023-03-24 · CVE-2019-12383

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Tor Browser versions prior to 8.0.1

Description The issue 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. This is an information exposure issue.

Recommendations For versions prior to 8.0.1, update to version 8.0.1 or later to resolve the issue.

Fix

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2019-12383

ECHO-21A6-33D6-5465

Affected Products

Debian

Tor Browser

References · 8

• https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55 · Patch
• https://trac.torproject.org/projects/tor/ticket/24056 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-12383 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-12383 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12383 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2019-12383 · Vendor Advisory
• http://securityfocus.com/bid/108484 · Note
• https://hackerone.com/reports/282748 · Note