| Name | CVE-2023-27371 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3374-1, ELA-824-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libmicrohttpd (PTS) | jessie, jessie (lts) | 0.9.37+dfsg-1+deb8u1 | fixed |
| stretch (lts), stretch | 0.9.51-1+deb9u1 | fixed | |
| buster (security), buster, buster (lts) | 0.9.62-1+deb10u1 | fixed | |
| bullseye | 0.9.72-2+deb11u1 | fixed | |
| bookworm | 0.9.75-6 | fixed | |
| sid, trixie | 1.0.1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libmicrohttpd | source | jessie | 0.9.37+dfsg-1+deb8u1 | ELA-824-1 | ||
| libmicrohttpd | source | stretch | 0.9.51-1+deb9u1 | ELA-824-1 | ||
| libmicrohttpd | source | buster | 0.9.62-1+deb10u1 | DLA-3374-1 | ||
| libmicrohttpd | source | bullseye | 0.9.72-2+deb11u1 | |||
| libmicrohttpd | source | (unstable) | 0.9.75-6 |
https://git.gnunet.org/libmicrohttpd.git/commit/?id=e0754d1638c602382384f1eface30854b1defeec (v0.9.76)
https://lists.gnu.org/archive/html/libmicrohttpd/2023-02/msg00000.html