CVE-2021-27433— ARM mbed-ualloc memory library Integer Overflow or Wraparound
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I. Basic Information for CVE-2021-27433
Vulnerability Information
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Vulnerability Title
ARM mbed-ualloc memory library Integer Overflow or Wraparound
Source: NVD (National Vulnerability Database)
Vulnerability Description
ARM mbed-ualloc memory library version 1.3.0 is vulnerable to integer wrap-around in function mbed_krbs, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Vulnerability Title
ARM Mbed OS 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ARM Mbed OS是英国ARM公司的一套专用于物联网的开源嵌入式操作系统。 Arm mbed-uallaoc memory library 1.3.0 版本存在输入验证错误漏洞，该漏洞源于不正确的内存分配可能导致任意的内存分配，从而导致意外的行为，如崩溃或远程代码注入执行。
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 |
|---|---|---|---|---|
| ARM | mbed-ualloc memory library | 1.3.0 | - |
II. Public POCs for CVE-2021-27433
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04x_refsource_CONFIRM
- https://github.com/ARMmbed/mbed-os/pull/14408x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-27433
Same Patch Batch · ARM · 2022-05-03 · 3 CVEs total
| CVE-2021-27431 | 7.3 HIGH | ARM CMSIS RTOS2 Integer Overflow or Wraparound |
| CVE-2021-27435 | 7.3 HIGH | ARM mbed Integer Overflow or Wraparound |
IV. Related Vulnerabilities
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V. Comments for CVE-2021-27433
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