{"id":"UBUNTU-CVE-2018-18541","details":"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.","modified":"2025-10-24T04:47:15Z","published":"2018-10-20T22:29:00Z","upstream":["CVE-2018-18541"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18541"},{"type":"REPORT","url":"https://www.teeworlds.com/forum/viewtopic.php?id=12544"},{"type":"REPORT","url":"https://github.com/teeworlds/teeworlds/issues/1536"},{"type":"REPORT","url":"https://github.com/teeworlds/teeworlds/commit/a263185571903ead01f6b351a91ea219ac9d215f"},{"type":"REPORT","url":"https://github.com/teeworlds/teeworlds/commit/aababc63eeeee1bc41672502ca6c7a1dd9f61d94"},{"type":"REPORT","url":"https://github.com/teeworlds/teeworlds/commit/f5fa1a92ed81ed8da721e803a036b1553a38e39e"},{"type":"REPORT","url":"https://bugs.debian.org/911487"},{"type":"REPORT","url":"https://teeworlds.com/?page=news&id=12544"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-18541"}],"affected":[{"package":{"name":"teeworlds","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/teeworlds@0.6.2+dfsg-2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.2+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"teeworlds","binary_version":"0.6.2+dfsg-2"},{"binary_name":"teeworlds-data","binary_version":"0.6.2+dfsg-2"},{"binary_name":"teeworlds-server","binary_version":"0.6.2+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18541.json"}},{"package":{"name":"teeworlds","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/teeworlds@0.6.4+dfsg-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.4+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"teeworlds","binary_version":"0.6.4+dfsg-1"},{"binary_name":"teeworlds-data","binary_version":"0.6.4+dfsg-1"},{"binary_name":"teeworlds-server","binary_version":"0.6.4+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18541.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}