What is CVE-2019-12383?

CVE-2019-12383 is a medium-severity vulnerability in Torproject Tor Browser, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2019-05-28.

How severe is CVE-2019-12383?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Torproject Tor Browser

CVE-2019-12383

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.

EPSS: 0.022 (80.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Torproject Tor_browser
N/a — versions n/a

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)

Frequently asked questions

What is CVE-2019-12383?: CVE-2019-12383 is a medium-severity vulnerability in Torproject Tor Browser, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2019-05-28.
How severe is CVE-2019-12383?: Medium severity. CVSS v3 base score is 4.3 out of 10.