CVE-2021-39247 Information

Description

Zint Barcode Generator before 2.10.0 has a one-byte buffer over-read related to is_last_single_ascii in code1.c and rs_encode_uint in reedsol.c.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://sourceforge.net/p/zint/code/ci/9b02cd52214e80f945bff41fc94bc1e17e15810c/ https://sourceforge.net/p/zint/tickets/232/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5