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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libmicrohttpd | libmicrohttpd 0.9.70 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libmicrohttpd | 0.9.71-1 | — |
| Debian 13 | libmicrohttpd | 0.9.71-1 | — |
| Debian 12 | libmicrohttpd | 0.9.71-1 | — |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1939127
- FEDORA-2021-6d5578e756 vendor-advisory
- FEDORA-2021-d4149ff7fb vendor-advisory
- FEDORA-2021-5e10ad8c19 vendor-advisory
- GLSA-202311-08 vendor-advisory