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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:teeworlds:teeworlds:*:*:*:*:*:*:*:*

Information

Published : 2021-12-15 15:15

Updated : 2021-12-27 21:18

NVD link : CVE-2021-43518

Mitre link : CVE-2021-43518

JSON object : View

Products Affected

teeworlds

teeworlds

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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