Vulnerabilities > CVE-2023-27371 - Out-of-bounds Read vulnerability in GNU Libmicrohttpd

CVSS 5.9 - MEDIUM

Attack vector

NETWORK

Attack complexity

HIGH

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

high complexity

gnu

CWE-125

NVD

Published: 2023-02-28

Updated: 2024-11-21

Summary

GNU libmicrohttpd before 0.9.76 allows remote DoS (Denial of Service) due to improper parsing of a multipart/form-data boundary in the postprocessor.c MHD_create_post_processor() method. This allows an attacker to remotely send a malicious HTTP POST packet that includes one or more '\0' bytes in a multipart/form-data boundary field, which - assuming a specific heap layout - will result in an out-of-bounds read and a crash in the find_boundary() function.

Vulnerable Configurations

Part	Description	Count
Application	Gnu GNU Libmicrohttpd 0.9.16 GNU Libmicrohttpd 0.9.17 GNU Libmicrohttpd 0.9.18 GNU Libmicrohttpd 0.9.19 GNU Libmicrohttpd 0.9.20 GNU Libmicrohttpd 0.9.21 GNU Libmicrohttpd 0.9.22 GNU Libmicrohttpd 0.9.23 GNU Libmicrohttpd 0.9.24 GNU Libmicrohttpd 0.9.25 GNU Libmicrohttpd 0.9.26 GNU Libmicrohttpd 0.9.27 GNU Libmicrohttpd 0.9.28 GNU Libmicrohttpd 0.9.29 GNU Libmicrohttpd 0.9.30 GNU Libmicrohttpd 0.9.31 GNU Libmicrohttpd 0.9.32 GNU Libmicrohttpd 0.9.33 GNU Libmicrohttpd 0.9.34 GNU Libmicrohttpd 0.9.35 GNU Libmicrohttpd 0.9.36 GNU Libmicrohttpd 0.9.37 GNU Libmicrohttpd 0.9.38 GNU Libmicrohttpd 0.9.39 GNU Libmicrohttpd 0.9.40 GNU Libmicrohttpd 0.9.41 GNU Libmicrohttpd 0.9.42 GNU Libmicrohttpd 0.9.43 GNU Libmicrohttpd 0.9.44 GNU Libmicrohttpd 0.9.45 GNU Libmicrohttpd 0.9.46 GNU Libmicrohttpd 0.9.47 GNU Libmicrohttpd 0.9.48 GNU Libmicrohttpd 0.9.49 GNU Libmicrohttpd 0.9.50 GNU Libmicrohttpd 0.9.51 GNU Libmicrohttpd 0.9.52 GNU Libmicrohttpd 0.9.53 GNU Libmicrohttpd 0.9.54 GNU Libmicrohttpd 0.9.55 GNU Libmicrohttpd 0.9.56 GNU Libmicrohttpd 0.9.57 GNU Libmicrohttpd 0.9.58 GNU Libmicrohttpd 0.9.59 GNU Libmicrohttpd 0.9.60 GNU Libmicrohttpd 0.9.61 GNU Libmicrohttpd 0.9.62 GNU Libmicrohttpd 0.9.63 GNU Libmicrohttpd 0.9.64 GNU Libmicrohttpd 0.9.65 GNU Libmicrohttpd 0.9.66 GNU Libmicrohttpd 0.9.67 GNU Libmicrohttpd 0.9.68 GNU Libmicrohttpd 0.9.69 GNU Libmicrohttpd 0.9.70 GNU Libmicrohttpd 0.9.71 GNU Libmicrohttpd 0.9.72 GNU Libmicrohttpd 0.9.73 GNU Libmicrohttpd 0.9.74 GNU Libmicrohttpd 0.9.75	60

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