Medium severity · published May 28, 2019
CVE-2019-12383
Tor Browser before 8.0.1 has an information exposure vulnerability
4.3
CVSS
2.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TB
Tor Browser · Torproject
before 8.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-12383
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-12383
Broken Link
http://www.securityfocus.com/bid/108484
Mailing List
https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55
Issue Tracking
https://hackerone.com/reports/282748
Vendor Advisory
https://trac.torproject.org/projects/tor/ticket/24056
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