CVE-2021-33839 Information disclosure in n/a

High 7.5 Published Updated

Attackers can confuse public and private QR codes to leak sensitive COVID-19 tracking data from the Luca Android application.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-33839?

CVE-2021-33839 is a high-severity vulnerability in n/a, published on 3 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

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.

Weakness: CWE-200

Which versions are affected by CVE-2021-33839?

It affects 1 product.

Products include Luca-App Luca.

How do I fix CVE-2021-33839?

No fix has been published for CVE-2021-33839 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-33839 being exploited?

There is no known exploitation of CVE-2021-33839 in the wild and no public exploit code.

Sources

Also known as GHSA-x4jr-cxw4-2x5h.

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