CVE-2021-33839

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.

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

2.77% chance of exploitation in the next 30 days, 86th percentile

Published

2021-06-03

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://youtu.be/jWyDfEB0m08

Security advisories

• https://luca-app.de/securityoverview/properties/objectives.html
• mame82/misc/blob/master/luca_traceIds.md
• https://twitter.com/patrick_hennig/status/1387738281757061125

References

• CVE Record
• NVD entry