CVE-2021-33796
Quick assessment
Affected
MuJS MuJS
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.
ccxvii mujs是开源的一个可嵌入的 C 语言解释器。 MuJS 1.1.2之前版本存在安全漏洞，该漏洞源于存在内存释放后重用问题，可能会导致系统拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-33796
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
ccxvii mujs 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ccxvii mujs是开源的一个可嵌入的 C 语言解释器。 MuJS 1.1.2之前版本存在安全漏洞，该漏洞源于存在内存释放后重用问题，可能会导致系统拒绝服务。
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
II. Public POCs for CVE-2021-33796
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-33796 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2021-33796
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