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[email protected]NVD:CVE-2021-43518

HistoryDec 15, 2021 - 3:15 p.m.

CVE-2021-43518

2021-12-1515:15:10

CWE-120

[email protected]

web.nvd.nist.gov

teeworlds

buffer overflow

vulnerability

map parser

denial of service

code execution

stack overflow

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.002

Percentile

55.2%

JSON

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

Nvd

Node

teeworldsteeworldsRange≤0.7.5

Node

fedoraprojectfedoraMatch35

fedoraprojectfedoraMatch36

VendorProductVersionCPE
teeworldsteeworlds*cpe:2.3:a:teeworlds:teeworlds:*:*:*:*:*:*:*:*
fedoraprojectfedora35cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
fedoraprojectfedora36cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
teeworlds	teeworlds	*	cpe:2.3:a:teeworlds:teeworlds::::::::
fedoraproject	fedora	35	cpe:2.3:o:fedoraproject:fedora:35:::::::*
fedoraproject	fedora	36	cpe:2.3:o:fedoraproject:fedora:36:::::::*