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Bug 829305 (CVE-2021-43518) - games-action/teeworlds: code execution via malicious map file
Summary: games-action/teeworlds: code execution via malicious map file
Alias: CVE-2021-43518
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal trivial (vote)
Assignee: Gentoo Security
Whiteboard: ~2 [upstream]
Depends on:
Reported: 2021-12-15 23:52 UTC by John Helmert III
Modified: 2021-12-15 23:53 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description John Helmert III gentoo-dev Security 2021-12-15 23:52:00 UTC
CVE-2021-43518 (

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.

No fix upstream as of yet.