Vulnerabilities > CVE-2020-5235 - Out-of-bounds Read vulnerability in Nanopb Project Nanopb

CVSS 9.8 - CRITICAL

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

HIGH

Availability impact

HIGH

network

low complexity

nanopb-project

CWE-125

critical

NVD

Published: 2020-02-04

Updated: 2024-11-21

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Nanopb_Project Nanopb Project Nanopb - Nanopb Project Nanopb 0.1.0 Nanopb Project Nanopb 0.1.1 Nanopb Project Nanopb 0.1.2 Nanopb Project Nanopb 0.1.3 Nanopb Project Nanopb 0.1.4 Nanopb Project Nanopb 0.1.5 Nanopb Project Nanopb 0.1.6 Nanopb Project Nanopb 0.1.7 Nanopb Project Nanopb 0.1.8 Nanopb Project Nanopb 0.1.9 Nanopb Project Nanopb 0.1.9.1 Nanopb Project Nanopb 0.2.0 Nanopb Project Nanopb 0.2.1 Nanopb Project Nanopb 0.2.2 Nanopb Project Nanopb 0.2.3 Nanopb Project Nanopb 0.2.4 Nanopb Project Nanopb 0.2.5 Nanopb Project Nanopb 0.2.6 Nanopb Project Nanopb 0.2.7 Nanopb Project Nanopb 0.2.8 Nanopb Project Nanopb 0.2.9 Nanopb Project Nanopb 0.2.9.1 Nanopb Project Nanopb 0.2.9.2 Nanopb Project Nanopb 0.2.9.3 Nanopb Project Nanopb 0.3.0 Nanopb Project Nanopb 0.3.1 Nanopb Project Nanopb 0.3.2 Nanopb Project Nanopb 0.3.3 Nanopb Project Nanopb 0.3.4 Nanopb Project Nanopb 0.3.5 Nanopb Project Nanopb 0.3.6 Nanopb Project Nanopb 0.3.7 Nanopb Project Nanopb 0.3.8 Nanopb Project Nanopb 0.3.9 Nanopb Project Nanopb 0.3.9.1 Nanopb Project Nanopb 0.3.9.2 Nanopb Project Nanopb 0.3.9.3 Nanopb Project Nanopb 0.3.9.4 Nanopb Project Nanopb 0.4.0	41

Common Weakness Enumeration (CWE)

CWE-125 - Out-of-bounds Read

Common Attack Pattern Enumeration and Classification (CAPEC)

Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

References