CVE-2023-27371 Information

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.

Reference

https://github.com/0xhebi/CVEs/tree/main/GNU%20Libmicrohttpd https://git.gnunet.org/libmicrohttpd.git/commit/?id=6d6846e20bfdf4b3eb1b592c97520a532f724238 https://lists.gnu.org/archive/html/libmicrohttpd/2023-02/msg00000.html