Vulnerability 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 Score
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zint | Barcode Generator | < 2.10.0 |
Related Weaknesses (CWE)
References
- https://sourceforge.net/p/zint/code/ci/9b02cd52214e80f945bff41fc94bc1e17e15810c/PatchThird Party Advisory
- https://sourceforge.net/p/zint/tickets/232/ExploitIssue TrackingPatch
- https://sourceforge.net/p/zint/code/ci/9b02cd52214e80f945bff41fc94bc1e17e15810c/PatchThird Party Advisory
- https://sourceforge.net/p/zint/tickets/232/ExploitIssue TrackingPatch
FAQ
What is CVE-2021-39247?
CVE-2021-39247 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.
How severe is CVE-2021-39247?
CVE-2021-39247 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-39247?
Check the references section above for vendor advisories and patch information. Affected products include: Zint Barcode Generator.