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Vulnerability · Published Feb 26, 2021 · Assigned by mitre

CVE-2021-27799

High 7.5

In plain English

A high-severity security flaw in the zint package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.4%top 16.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12zint2.9.1-1.1DEBIAN-CVE-2021-27799
Debian:13zint2.9.1-1.1DEBIAN-CVE-2021-27799
Debian:14zint2.9.1-1.1DEBIAN-CVE-2021-27799
Ubuntu:22.04:LTSzintno fix listedUBUNTU-CVE-2021-27799
Ubuntu:24.04:LTSzintno fix listedUBUNTU-CVE-2021-27799
Ubuntu:25.10zintno fix listedUBUNTU-CVE-2021-27799
Ubuntu:26.04:LTSzintno fix listedUBUNTU-CVE-2021-27799
Ubuntu:26.10zintno fix listedUBUNTU-CVE-2021-27799

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References