Zint Barcode Generator prior 2.10.0 code1.c is_last_single_ascii buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Zint Barcode Generator. Affected is the function is_last_single_ascii of the file code1.c. Performing a manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2021-39247. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Zint Barcode Generator. It has been classified as critical. This affects the function is_last_single_ascii of the file code1.c. 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 shared 08/18/2021. It is possible to read the advisory at sourceforge.net. This vulnerability is uniquely identified as CVE-2021-39247. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.10.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at sourceforge.net. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Barcode Generator 2.10.0
Patch: sourceforge.net

Timelineinfo

08/17/2021 🔍
08/18/2021 +1 days 🔍
08/18/2021 +0 days 🔍
08/19/2021 +1 days 🔍

Sourcesinfo

Advisory: sourceforge.net
Status: Confirmed

CVE: CVE-2021-39247 (🔍)
GCVE (CVE): GCVE-0-2021-39247
GCVE (VulDB): GCVE-100-181059

Entryinfo

Created: 08/18/2021 10:33
Updated: 08/19/2021 23:39
Changes: 08/18/2021 10:33 (39), 08/19/2021 23:39 (2)
Complete: 🔍
Cache ID: 216::103

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

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