What is CVE-2021-39247?

CVE-2021-39247 is a medium-severity vulnerability in Zint Barcode Generator, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2021-08-17.

How severe is CVE-2021-39247?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Zint Barcode Generator

CVE-2021-39247

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.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (56.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Zint Barcode_generator
N/a — versions n/a

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-39247?: CVE-2021-39247 is a medium-severity vulnerability in Zint Barcode Generator, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2021-08-17.
How severe is CVE-2021-39247?: Medium severity. CVSS v3 base score is 6.5 out of 10.