Zint Barcode Generator 2.19.1 C API backend/upcean.c ean_leading_zeroes buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Zint Barcode Generator 2.19.1 and classified as critical. Affected by this issue is the function ean_leading_zeroes of the file backend/upcean.c of the component C API. Performing a manipulation results in buffer overflow. This vulnerability was named CVE-2021-27799. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in Zint Barcode Generator 2.19.1. This affects the function ean_leading_zeroes of the file backend/upcean.c of the component C API. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 02/27/2021. It is possible to read the advisory at sourceforge.net. This vulnerability is uniquely identified as CVE-2021-27799. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at sourceforge.net.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: sourceforge.net

Timelineinfo

02/26/2021 🔍
02/27/2021 +1 days 🔍
02/27/2021 +0 days 🔍
03/14/2021 +15 days 🔍

Sourcesinfo

Advisory: sourceforge.net
Status: Confirmed

CVE: CVE-2021-27799 (🔍)
GCVE (CVE): GCVE-0-2021-27799
GCVE (VulDB): GCVE-100-170523

Entryinfo

Created: 02/27/2021 08:22
Updated: 03/14/2021 07:38
Changes: 02/27/2021 08:22 (40), 03/05/2021 21:44 (5), 03/14/2021 07:38 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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