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CVE-2021-26461— malloc, realloc and memalign implementations are vulnerable to integer wrap-arounds

Quick assessment

Affected
Apache Software Foundation Apache NuttX
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache NuttX是美国阿帕奇（Apache）基金会的一套实时嵌入式操作系统。 Apache NuttX 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。

AI Predicted 8.1 Difficulty: Moderate EPSS 5.04% · P92

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26461

Vulnerability Information
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Vulnerability Title
malloc, realloc and memalign implementations are vulnerable to integer wrap-arounds
Source: CVE Program / CVE List V5
Vulnerability Description
Apache Nuttx Versions prior to 10.1.0 are vulnerable to integer wrap-around in functions malloc, realloc and memalign. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Apache NuttX 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache NuttX是美国阿帕奇（Apache）基金会的一套实时嵌入式操作系统。 Apache NuttX 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
Apache Software Foundation Apache NuttX Apache NuttX ~ 10.1.0 -

II. Public POCs for CVE-2021-26461

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III. Intelligence Information for CVE-2021-26461

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Mailing List Discussions for CVE-2021-26461 (1)

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-190

V. Comments for CVE-2021-26461

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