CVE-2021-27799 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zint	Barcode Generator	2.9.1

Related Weaknesses (CWE)

CWE-787

References

http://zint.org.uk/Manual.aspx?type=p&page=3Vendor Advisory
http://zint.org.uk/Manual.aspx?type=p&page=4Vendor Advisory
http://zint.org.uk/Manual.aspx?type=p&page=5Vendor Advisory
https://sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a/PatchThird Party Advisory
https://sourceforge.net/p/zint/tickets/218/ExploitThird Party Advisory
http://zint.org.uk/Manual.aspx?type=p&page=3Vendor Advisory
http://zint.org.uk/Manual.aspx?type=p&page=4Vendor Advisory
http://zint.org.uk/Manual.aspx?type=p&page=5Vendor Advisory
https://sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a/PatchThird Party Advisory
https://sourceforge.net/p/zint/tickets/218/ExploitThird Party Advisory

FAQ

What is CVE-2021-27799?

CVE-2021-27799 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 Generato...

How severe is CVE-2021-27799?

CVE-2021-27799 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-27799?

Check the references section above for vendor advisories and patch information. Affected products include: Zint Barcode Generator.