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I. Basic Information for CVE-2020-5235
Vulnerability Information

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Vulnerability Title
Out-of-memory condition in Nanopb is potentially exploitable
Source: NVD (National Vulnerability Database)
Vulnerability Description
There is a potentially exploitable out of memory condition In Nanopb before 0.4.1, 0.3.9.5, and 0.2.9.4. When nanopb is compiled with PB_ENABLE_MALLOC, the message to be decoded contains a repeated string, bytes or message field and realloc() runs out of memory when expanding the array nanopb can end up calling `free()` on a pointer value that comes from uninitialized memory. Depending on platform this can result in a crash or further memory corruption, which may be exploitable in some cases. This problem is fixed in nanopb-0.4.1, nanopb-0.3.9.5, nanopb-0.2.9.4.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nanopb 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nanopb是Nanopb个人开发者的一个适用于微处理器的协议缓冲区实现。 Nanopb 0.4.1之前版本、0.3.9.5之前版本和0.2.9.4之前版本中存在缓冲区错误漏洞。攻击者可借助特制的文件利用该漏洞造成应用程序崩溃。
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
VendorProductAffected VersionsCPESubscribe
nanopbNanopb < 0.2.9.4 -
II. Public POCs for CVE-2020-5235
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/uthrasri/CVE-2020-5235_nanopb-c_AOSP10_R33POC Details
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III. Intelligence Information for CVE-2020-5235
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IV. Related Vulnerabilities
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