teeworlds: Teeworlds up to and including 0.7.5 is vulnerable to Buffer Overflow
CVE-2021-43518 is fixed in 3 products on 1 platform, first by teeworlds 0.7.5-2, released December 15, 2021. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| teeworlds · Debian 12.15 (bookworm) | 0.7.5-2 | DEBIAN-CVE-2021-43518 | Dec 15, 2021 |
| teeworlds · Debian 13.5 (trixie) | 0.7.5-2 | DEBIAN-CVE-2021-43518 | Dec 15, 2021 |
| teeworlds · Debian 14 | 0.7.5-2 | DEBIAN-CVE-2021-43518 | Dec 15, 2021 |
| teeworlds · Ubuntu 24.04.5 LTS (noble) | 0.7.5-2 | teeworlds 0.7.5-2 | Dec 15, 2021 |
| teeworlds · Ubuntu 25.10 (questing) | 0.7.5-2 | teeworlds 0.7.5-2 | Dec 15, 2021 |
| teeworlds · Ubuntu 26.04.1 LTS (resolute) | 0.7.5-2 | teeworlds 0.7.5-2 | Dec 15, 2021 |
| teeworlds-data · Ubuntu 24.04.5 LTS (noble) | 0.7.5-2 | teeworlds-data 0.7.5-2 | Dec 15, 2021 |
| teeworlds-data · Ubuntu 25.10 (questing) | 0.7.5-2 | teeworlds-data 0.7.5-2 | Dec 15, 2021 |
| teeworlds-data · Ubuntu 26.04.1 LTS (resolute) | 0.7.5-2 | teeworlds-data 0.7.5-2 | Dec 15, 2021 |
| teeworlds-server · Ubuntu 24.04.5 LTS (noble) | 0.7.5-2 | teeworlds-server 0.7.5-2 | Dec 15, 2021 |
| teeworlds-server · Ubuntu 25.10 (questing) | 0.7.5-2 | teeworlds-server 0.7.5-2 | Dec 15, 2021 |
| teeworlds-server · Ubuntu 26.04.1 LTS (resolute) | 0.7.5-2 | teeworlds-server 0.7.5-2 | Dec 15, 2021 |
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