Vulnerability · Published Jun 3, 2021 · Assigned by mitre

CVE-2021-33839

High 7.5

In plain English

A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 86% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)2.8%top 13.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because the QR code of a Public Location can be intentionally confused with the QR code of a Private Meeting.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/mame82/misc/blob/master/luca_traceIds.md x_refsource_MISC
https://luca-app.de/securityoverview/properties/objectives.html x_refsource_MISC
https://youtu.be/jWyDfEB0m08 x_refsource_MISC
https://twitter.com/patrick_hennig/status/1387738281757061125 x_refsource_MISC