CVE-2021-43518
HIGH
7.8
CVSS Score
Published: December 15, 2021 at 02:33 PM UTC
Updated: June 17, 2026 at 04:11 AM UTC
2 products affected across 2 vendorsFedoraTeeworlds
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Severity
HIGH7.8
Exploit prediction
EPSS 1%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 0.7.5
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/teeworlds/teeworlds/issues/2981Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIYZ7EVY6NZBM7FQF6GVUARYO6MKSEAT/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OS2LI2RHQNUKUT3FKWYHRC27PLRWCHMZ/x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://mmmds.pl/fuzzing-map-parser-part-1-teeworlds/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120
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