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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libmicrohttpd-docUpgrade libmicrohttpd-develUpgrade libmicrohttpd | Nov 16, 2023 | Feb 28, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libmicrohttpd-docUpgrade libmicrohttpd-debuginfoUpgrade libmicrohttpd-develUpgrade libmicrohttpd | Jul 21, 2023 | Feb 28, 2023 |
| Amazon_linux_2023 | — | Upgrade libmicrohttpdUpgrade libmicrohttpd-develUpgrade libmicrohttpd-debuginfoUpgrade libmicrohttpd-docUpgrade libmicrohttpd-debugsource | Aug 5, 2025 | Feb 28, 2023 |
| Centos_linux | — | Upgrade libmicrohttpdUpgrade libmicrohttpd-debuginfoUpgrade libmicrohttpd-debugsource | Nov 8, 2023 | Feb 28, 2023 |
| Debian | — | Upgrade libmicrohttpd | Apr 3, 2023 | Feb 28, 2023 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libmicrohttpd | Feb 12, 2024 | Feb 28, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade libmicrohttpd | Jan 10, 2024 | Feb 28, 2023 |
| Oracle_linux | — | Upgrade libmicrohttpd-docUpgrade libmicrohttpd-develUpgrade libmicrohttpd | Nov 22, 2023 | Feb 28, 2023 |
| Redhat_linux | — | Upgrade libmicrohttpdUpgrade libmicrohttpd-debuginfoUpgrade libmicrohttpd-develNo solution existsUpgrade libmicrohttpd-docUpgrade libmicrohttpd-debugsource | Nov 8, 2023 | Feb 28, 2023 |
| Rocky_linux | — | Upgrade libmicrohttpdUpgrade libmicrohttpd-debugsourceUpgrade libmicrohttpd-debuginfoUpgrade libmicrohttpd-devel | Jun 29, 2026 | Jun 25, 2026 |
| Suse | — | Upgrade libmicrohttpd-develUpgrade libmicrohttpd12Upgrade libmicrohttpd10 | Mar 30, 2023 | Feb 28, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Feb 28, 2023 |
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