CVE-2023-27371
Medium
Description
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.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Gnu Libmicrohttpd
PublishedFeb 28, 2023
First seenFeb 28, 2023
How to fix
Update
- gnu libmicrohttpd0.9.76 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu libmicrohttpd | v < 0.9.76 | 0.9.76 |
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