| Name | CVE-2020-25756 |
| Description | A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not happen in practice. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, 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 |
|---|
| mongoose (PTS) | forky, sid | 7.21+ds-2 | fixed |
| swupdate (PTS) | bullseye | 2020.11-2+deb11u1 | vulnerable |
| bookworm | 2022.12+dfsg-4+deb12u2 | fixed |
| trixie | 2024.12.1+dfsg-3+deb13u2 | fixed |
| forky, sid | 2025.12+dfsg-10 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| mongoose | source | (unstable) | (not affected) | | | |
| swupdate | source | (unstable) | 2022.12+dfsg-1 | | | |
Notes
- mongoose <not-affected> (Fixed before or with initial upload)
[bullseye] - swupdate <postponed> (Minor issue)
https://github.com/cesanta/mongoose/issues/1135
smplayer embeds a copy, which is unused in any released version and disabled since 18.5.0~ds1-1