Cesanta MJS 2.20.0 mjs_get_ptr memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Cesanta MJS 2.20.0. It has been declared as critical. Affected by this vulnerability is the function mjs_get_ptr. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2023-43338. There is no available exploit.

Detailsinfo

A vulnerability was found in Cesanta MJS 2.20.0. It has been rated as critical. Affected by this issue is the function mjs_get_ptr. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability via the function mjs_get_ptr(). This vulnerability allows attackers to execute arbitrary code via a crafted input.

The weakness was presented 09/23/2023 as 250. The advisory is available at github.com. This vulnerability is handled as CVE-2023-43338 since 09/18/2023. Technical details 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-47757). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/18/2023 🔍
09/23/2023 +5 days 🔍
09/23/2023 +0 days 🔍
02/05/2026 +866 days 🔍

Sourcesinfo

Product: github.com

Advisory: 250
Status: Confirmed

CVE: CVE-2023-43338 (🔍)
GCVE (CVE): GCVE-0-2023-43338
GCVE (VulDB): GCVE-100-240218
EUVD: 🔍

Entryinfo

Created: 09/23/2023 07:18
Updated: 02/05/2026 07:26
Changes: 09/23/2023 07:18 (39), 10/14/2023 15:49 (11), 02/05/2026 07:26 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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