Cesanta MJS 2.20.0 mjs/src/mjs_json.c snquote stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Cesanta MJS 2.20.0. It has been rated as critical. This affects the function snquote of the file mjs/src/mjs_json.c. Performing a manipulation results in stack-based overflow. This vulnerability was named CVE-2021-46509. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cesanta MJS 2.20.0. This affects the function snquote of the file mjs/src/mjs_json.c. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 01/28/2022 as 200. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-46509 since 01/24/2022. Technical details are known, but no exploit is available.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

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: Stack-based overflow
CWE: CWE-121 / 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

01/24/2022 🔍
01/28/2022 +4 days 🔍
01/28/2022 +0 days 🔍
01/30/2022 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: 200
Status: Confirmed

CVE: CVE-2021-46509 (🔍)
GCVE (CVE): GCVE-0-2021-46509
GCVE (VulDB): GCVE-100-191793

Entryinfo

Created: 01/28/2022 09:51
Updated: 01/30/2022 08:45
Changes: 01/28/2022 09:51 (39), 01/30/2022 08:45 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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