Buffer overflow in Zint Barcode Generator
CVE-2021-27799
ean_leading_zeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Zint Barcode Generator — versions 2.9.1
Weakness classification (CWE)
References
- sourceforge.net/p/zint/tickets/218/ (Exploit, Third Party Advisory)
- zint.org.uk/Manual.aspx (Vendor Advisory)
- zint.org.uk/Manual.aspx (Vendor Advisory)
- zint.org.uk/Manual.aspx (Vendor Advisory)
- sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a/ (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27799?
- CVE-2021-27799 is a high-severity vulnerability in Zint Barcode Generator, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-02-26.
- How severe is CVE-2021-27799?
- High severity. CVSS v3 base score is 7.5 out of 10.