| Name | CVE-2021-43518 |
| Description | Teeworlds up to and including 0.7.5 is vulnerable to Buffer Overflow. A map parser does not validate m_Channels value coming from a map file, leading to a buffer overflow. A malicious server may offer a specially crafted map that will overwrite client's stack causing denial of service or code execution. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1009070 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| teeworlds (PTS) | jessie | 0.6.2+dfsg-2 | vulnerable |
| buster (security), buster, buster (lts) | 0.7.2-5+deb10u1 | vulnerable |
| bullseye | 0.7.5-1 | vulnerable |
| sid, trixie, bookworm | 0.7.5-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| teeworlds | source | jessie | (unfixed) | end-of-life | | |
| teeworlds | source | (unstable) | 0.7.5-2 | | | 1009070 |
Notes
[bullseye] - teeworlds <no-dsa> (Minor issue)
[buster] - teeworlds <no-dsa> (Minor issue)
https://github.com/teeworlds/teeworlds/issues/2981
https://github.com/teeworlds/teeworlds/pull/3018
https://github.com/teeworlds/teeworlds/commit/91e5492d4c210f82f1ca6b43a73417fef5463368
https://mmmds.pl/fuzzing-map-parser-part-1-teeworlds/