Description
In Teeworlds before 0.6.5, connection packets could be forged. There was no challenge-response involved in the connection build up. A remote attacker could send connection packets from a spoofed IP address and occupy all server slots, or even use them for a reflection attack using map download packets.
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 | teeworlds | 0.7.0-1 | — |
| Debian 13 | teeworlds | 0.7.0-1 | — |
| Debian 12 | teeworlds | 0.7.0-1 | — |
| Debian 9 | teeworlds | 0.6.5+dfsg-1~deb9u1 | DSA-4329-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | teeworlds | No fix yet | — |
| Ubuntu 16.04 LTS | teeworlds | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP1 | teeworlds | 0.7.3.1-bp151.2.3.3 | openSUSE-SU-2019:1999-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | teeworlds | 0.7.3.1-lp151.2.3.1 | openSUSE-SU-2019:1793-1 |
Advisories 3
- DSA-4329-1 teeworlds - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2019:1793-1 Security update for teeworlds SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1999-1 Security update for teeworlds SUSE / openSUSE Security Updates · May 7, 2025
References
- https://teeworlds.com/?page=news&id=12544
- https://github.com/teeworlds/teeworlds/issues/1536
- https://bugs.debian.org/911487
- DSA-4329 vendor-advisory
- openSUSE-SU-2019:1793 vendor-advisory
- openSUSE-SU-2019:1999 vendor-advisory