CVE-2023-40889

Published: 29 August 2023

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.

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
zbar Launchpad, Ubuntu, Debian	trusty	Needs triage
	xenial	Needs triage
	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	lunar	Needs triage
	upstream	Needs triage

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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