CVEvulnerability
CVE-2021-43518
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-12-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-120
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.
Affected configurations
• teeworlds teeworlds (<= 0.7.5)
• fedoraproject fedora 35
• fedoraproject fedora 36
Related
Weakness · CWE (1)
- CWE-120 Buffer Copy without Checking Size of Input weakness
References
- https://github.com/teeworlds/teeworlds/issues/2981 Exploit, Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIYZ7EVY6NZBM7FQF6GVUARYO6MKSEAT/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OS2LI2RHQNUKUT3FKWYHRC27PLRWCHMZ/ lists.fedoraproject.org
- https://mmmds.pl/fuzzing-map-parser-part-1-teeworlds/ Exploit, Third Party Advisory
- https://github.com/teeworlds/teeworlds/issues/2981 Exploit, Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIYZ7EVY6NZBM7FQF6GVUARYO6MKSEAT/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OS2LI2RHQNUKUT3FKWYHRC27PLRWCHMZ/ lists.fedoraproject.org
- https://mmmds.pl/fuzzing-map-parser-part-1-teeworlds/ Exploit, Third Party Advisory