CVE-2021-46525
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cesanta MJS是爱尔兰Cesanta公司的一个用于 C/C++ 的嵌入式 JavaScript 引擎。专为资源有限的微控制器而设计。主要设计目标是占用空间小和简单的C / C ++互操作性。 Cesanta MJS v2.20.0 存在安全漏洞，该漏洞源于 src/mjs_exec.c 的 mjs_apply 包含一个 heap-use-after-free。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-46525
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Cesanta MJS v2.20.0 was discovered to contain a heap-use-after-free via mjs_apply at src/mjs_exec.c.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Cesanta MJS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cesanta MJS是爱尔兰Cesanta公司的一个用于 C/C++ 的嵌入式 JavaScript 引擎。专为资源有限的微控制器而设计。主要设计目标是占用空间小和简单的C / C ++互操作性。 Cesanta MJS v2.20.0 存在安全漏洞，该漏洞源于 src/mjs_exec.c 的 mjs_apply 包含一个 heap-use-after-free。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-46525
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-46525 (1)
-
https://github.com/cesanta/mjs/issues/199 x_refsource_MISC
Same Patch Batch · n/a · 2022-01-27 · 76 CVEs total
| CVE-2021-46523 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46546 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46532 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46531 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46530 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46529 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46528 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46527 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46526 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46524 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46534 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46522 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46521 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46520 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46519 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46518 | Cesanta MJS 缓冲区错误漏洞 | |
| CVE-2021-46517 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46516 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46515 | Cesanta MJS 安全漏洞 | |
| CVE-2021-46514 | Cesanta MJS 安全漏洞 |
Showing top 20 of 76 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-46525
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