CVE-2021-26706
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.
uC-OS2是一个操作系统。用于微处理器，微控制器和DSP的便携式，可ROM，可扩展，抢占式实时确定性多任务内核。 uC-OS2 版本及之前版本存在输入验证错误漏洞，该漏洞源于未验证的内存分配可能导致任意的内存分配，从而导致一些意想不到的行为，比如分配非常小的内存块，而不是非常大的内存块。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26706
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in lib_mem.c in Micrium uC/OS uC/LIB 1.38.x and 1.39.00. The following memory allocation functions do not check for integer overflow when allocating a pool whose size exceeds the address space: Mem_PoolCreate, Mem_DynPoolCreate, and Mem_DynPoolCreateHW. Because these functions use multiplication to calculate the pool sizes, the operation may cause an integer overflow if the arguments are large enough. The resulting memory pool will be smaller than expected and may be exploited by an attacker.
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
uC-OS2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
uC-OS2是一个操作系统。用于微处理器，微控制器和DSP的便携式，可ROM，可扩展，抢占式实时确定性多任务内核。 uC-OS2 版本及之前版本存在输入验证错误漏洞，该漏洞源于未验证的内存分配可能导致任意的内存分配，从而导致一些意想不到的行为，比如分配非常小的内存块，而不是非常大的内存块。
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-2021-26706
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-26706 (1)
-
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 x_refsource_MISC
Other References for CVE-2021-26706 (2)
-
https://docs.silabs.com/micrium/latest/micrium-common/ x_refsource_MISC
-
https://micrium.atlassian.net/wiki/spaces/libdoc138/ x_refsource_MISC
Same Patch Batch · n/a · 2022-01-24 · 33 CVEs total
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| CVE-2021-41660 | Patient Appointment Scheduler System SQL注入漏洞 | |
| CVE-2021-39293 | Google Go 安全漏洞 | |
| CVE-2021-41658 | Student Quarterly Grading System 跨站脚本漏洞 | |
| CVE-2021-41472 | Simple Membership System SQL注入漏洞 | |
| CVE-2021-41471 | South Gate Inn Online Reservation System SQL注入漏洞 |
Showing top 20 of 33 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-26706
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