CVE-2021-33840

The CVE-2021-33840 issue affects Luca app up to v1.1.14, where Phone Number data is stored without a digital signature. This enables remote attackers to insert many fake COVID-19 records, causing a denial of service. Public documents confirm the vulnerability, its impact (DoS from mass fake recor...

CVE-2021-33839

CVE-2021-33839 affects Luca for Android up to version 1.7.4. The root cause is the QR code handling that can confuse a Public Location QR with a Private Meeting QR, enabling remote attackers to obtain sensitive COVID-19 tracking information. Impact: confidentiality at HIGH (C in CVSS3.1), exploit...

CVE-2021-33838

The CVE-2021-33838 issue affects Luca app on Android (versions 1.7.4 and earlier). The root cause is a sequence where requests related to Check-In State occur shortly after Phone Number Registration, enabling remote attackers to obtain sensitive COVID-19 tracking information. Impact is described ...