zlog 1.2.15 src/zlog/src/conf.c zlog_conf_build_with_file buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in zlog 1.2.15. Affected is the function zlog_conf_build_with_file of the file src/zlog/src/conf.c. This manipulation causes buffer overflow. This vulnerability appears as CVE-2021-43521. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in zlog 1.2.15. Affected by this vulnerability is the function zlog_conf_build_with_file of the file src/zlog/src/conf.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 04/08/2022 as 206. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-43521 since 11/08/2021. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/08/2021 🔍
04/08/2022 +150 days 🔍
04/08/2022 +0 days 🔍
04/13/2022 +5 days 🔍

Sourcesinfo

Advisory: 206
Status: Confirmed

CVE: CVE-2021-43521 (🔍)
GCVE (CVE): GCVE-0-2021-43521
GCVE (VulDB): GCVE-100-196723

Entryinfo

Created: 04/08/2022 20:44
Updated: 04/13/2022 08:11
Changes: 04/08/2022 20:44 (38), 04/13/2022 08:11 (1)
Complete: 🔍
Cache ID: 216::103

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

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