CVE catalog

CVE-2021-27799

zint: CVE-2021-27799

Severity: Medium
Published: Feb 26, 2021, 10:15:20 PM UTC
Source: [NVD] · [CVE record]
EPSS: 2.37% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	zint	sid	`2.15.0-2`	fixed
Debian	zint	forky	`2.15.0-2`	fixed
Debian	zint	trixie	`2.15.0-1`	fixed
Debian	zint	bookworm	`2.11.1-1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	zint	source	sid	`2.9.1-1.1`	not yet assigned	Not reported	[983610]
Debian	zint	source	forky	`2.9.1-1.1`	not yet assigned	Not reported	[983610]
Debian	zint	source	trixie	`2.9.1-1.1`	not yet assigned	Not reported	[983610]
Debian	zint	source	bookworm	`2.9.1-1.1`	not yet assigned	Not reported	[983610]

[Debian bug #983610]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libzint2.11]Fixed
Source package: [zint]
Details (2)
- 2.11.1-1 · amd64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
- 2.11.1-1 · arm64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
[libzint-dev]Fixed
Source package: [zint]
Details (2)
- 2.11.1-1 · amd64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
- 2.11.1-1 · arm64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
[zint]Fixed
Details (2)
- 2.11.1-1 · amd64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
- 2.11.1-1 · arm64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
[zint-qt]Fixed
Source package: [zint]
Details (2)
- 2.11.1-1 · amd64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12
- 2.11.1-1 · arm64 · bookworm
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · bookworm; dsa · zint · debian · 12

[Debian 13 (Trixie)]

[libzint2.15]Fixed
Source package: [zint]
Details (2)
- 2.15.0-1+b1 · amd64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
- 2.15.0-1+b1 · arm64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
[libzint-dev]Fixed
Source package: [zint]
Details (2)
- 2.15.0-1+b1 · amd64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
- 2.15.0-1+b1 · arm64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
[zint]Fixed
Source package: [zint]
Details (2)
- 2.15.0-1+b1 · amd64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
- 2.15.0-1+b1 · arm64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
[zint-qt]Fixed
Source package: [zint]
Details (2)
- 2.15.0-1+b1 · amd64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13
- 2.15.0-1+b1 · arm64 · trixie
  Fixed · Fixed: 2.9.1-1.1
  dsa · zint · debian · 13

Observed: Oct 23, 2026, 5:55:26 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]