| Name | CVE-2021-3466 |
| Description | A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
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.
Notes
[buster] - libmicrohttpd <not-affected> (Vulnerable code introduced later)
[stretch] - libmicrohttpd <not-affected> (Vulnerable code introduced later)
Patch: https://git.gnunet.org/libmicrohttpd.git/commit/?id=a110ae6276660bee3caab30e9ff3f12f85cf3241
Introduced in https://git.gnunet.org/libmicrohttpd.git/commit/?id=55f715e15e3ce66babc939b5a670bee02d4d9571
[jessie] - libmicrohttpd <not-affected> (Vulnerable code introduced later)