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.
References (4)
Core 4
Core References
Exploit, Third Party Advisory
https://github.com/0xhebi/CVEs/tree/main/GNU%20Libmicrohttpd
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2023/03/msg00029.html
Scores
CVSS v3
5.9
EPSS
0.0007
EPSS Percentile
22.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
gnu/libmicrohttpd
< 0.9.76
Published
Feb 28, 2023
Tracked Since
Feb 18, 2026