CVE-2023-40889
CriticalCVSS 9.8Exploitation Probability (EPSS)
Elevated risk72th percentile - higher than 72% of all known CVEs
Summary
A heap-based buffer overflow exists in the qr_reader_match_centers function of ZBar 0.23.90. Specially crafted QR codes may lead to information disclosure and/or arbitrary code execution.
Risk Assessment
An attacker can exploit this vulnerability to inject malicious code, posing a serious threat to system security and user data.
Recommendation
It is recommended to update ZBar to the latest version to mitigate this vulnerability and implement additional security measures when scanning QR codes.
Original NVD description (English source)
A heap-based buffer overflow exists in the qr_reader_match_centers function of ZBar 0.23.90. Specially crafted QR codes may lead to information disclosure and/or arbitrary code execution. To trigger this vulnerability, an attacker can digitally input the malicious QR code, or prepare it to be physically scanned by the vulnerable scanner.