Vulnerability Details : 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 category: OverflowMemory Corruption
Products affected by CVE-2021-27799
- cpe:2.3:a:zint:barcode_generator:2.9.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27799
0.32%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27799
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-27799
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27799
-
http://zint.org.uk/Manual.aspx?type=p&page=4
Vendor Advisory
-
https://sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a/
Zint Barcode Generator / Code / Commit [7f8c81]Patch;Third Party Advisory
-
http://zint.org.uk/Manual.aspx?type=p&page=5
Vendor Advisory
-
https://sourceforge.net/p/zint/tickets/218/
Zint Barcode Generator / Tickets / #218 Stack Buffer Overflow in EAN GeneratorExploit;Third Party Advisory
-
http://zint.org.uk/Manual.aspx?type=p&page=3
Vendor Advisory
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