CVE-2019-12383 — Observable Discrepancy in TOR Browser

CWE-203 — Observable Discrepancy4 documents4 sources
Severity
4.3MEDIUMNVD
EPSS
0.7%
top 27.42%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Torproject TOR BrowserDebian FirefoxDebian Firefox-esr
Timeline
PublishedMay 28
Latest updateMay 24

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:NExploitability: 2.8 | Impact: 1.4

Affected Packages3 packages

Patches

Patch: gitweb.torproject.org ↗Patch: gitweb.torproject.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-9c7r-v445-c52r: Tor Browser before 8↗2022-05-24
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OSV
CVE-2019-12383: Tor Browser before 8↗2019-05-28
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📋Vendor Advisories

1
Debian
CVE-2019-12383: firefox - Tor Browser before 8.0.1 has an information exposure vulnerability. It allows re...↗2019
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