Name: CVE-2021-43518: Buffer Copy without Checking Size of Input
Creator: Rapid7
Published: 2021-12-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-43518, CWE-120, CVSS 7.8, EPSS 0.00593

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.

CVSS Details

CVSS 3.1 Base Score: 7.8
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Dec 15, 2021
Debian	—	Upgrade teeworlds	Jul 30, 2024	Dec 15, 2021
Freebsd	—	Upgrade teeworlds	Nov 4, 2022	Mar 10, 2022
Ubuntu	—	Upgrade teeworlds	Dec 16, 2025	Dec 15, 2021

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CVSS Details

Covered by Rapid7

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