PT-2021-17624 · Unknown · Zint Barcode Generator

Jan Schrewe · Published 2021-02-26 · Updated 2021-03-10 · CVE-2021-27799

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Zint Barcode Generator version 2.9.1 Zint Barcode Generator version 2.19.1

Description: The issue is related to a stack-based buffer overflow in the ean leading zeroes function in backend/upcean.c of the Zint Barcode Generator. This overflow is reachable from the C API through an application that includes the Zint Barcode Generator library code.

Recommendations: For Zint Barcode Generator version 2.9.1, consider disabling the ean leading zeroes function in backend/upcean.c to prevent exploitation until a patch is available. For Zint Barcode Generator version 2.19.1, consider disabling the ean leading zeroes function in backend/upcean.c to prevent exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-27799

Affected Products

Zint Barcode Generator

References · 15

• 🔥 https://sourceforge.net/p/zint/tickets/218 · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-27799 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-27799 · Vendor Advisory
• http://zint.org.uk/Manual.aspx?type=p&page=5 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-27799 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-27799 · Vendor Advisory
• https://sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a · Patch
• http://zint.org.uk/Manual.aspx?type=p&page=3 · Vendor Advisory
• http://zint.org.uk/Manual.aspx?type=p&page=4 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-27799 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-27799 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27799 · Security Note
• https://t.me/cibsecurity/24255 · Telegram Post
• https://t.me/cvenotify/10617 · Telegram Post
• https://t.me/cvenotify/10648 · Telegram Post