Bug 1193831 – VUL-0: CVE-2021-43518: teeworlds: buffer overflow in map parser

Bug 1193831 - (CVE-2021-43518) VUL-0: CVE-2021-43518: teeworlds: buffer overflow in map parser

(CVE-2021-43518)
Summary:	VUL-0: CVE-2021-43518: teeworlds: buffer overflow in map parser

Status:	NEW

Classification:	openSUSE
Product:	openSUSE Distribution
Classification:	openSUSE
Component:	Security
Version:	Leap 15.3
Hardware:	Other Other

Priority:	P3 - Medium Severity: Normal (vote)
Target Milestone:	---
Assigned To:	Pavol Rusnak
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/317567/
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Reported:	2021-12-16 15:43 UTC by Thomas Leroy
Modified:	2021-12-16 16:15 UTC (History)
CC List:	0 users

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Found By:	Security Response Team
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Description Thomas Leroy 2021-12-16 15:43:27 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.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-43518
https://github.com/teeworlds/teeworlds/issues/2981
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43518
https://mmmds.pl/fuzzing-map-parser-part-1-teeworlds/