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CVE-2021-43518

HIGHCVSS 7.8/10EPSS 1.38%

Last modified

CVE-2021-43518 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 1.38% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
1.38%

68.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TeeworldsTeeworlds<= 0.7.5
FedoraprojectFedora35
FedoraprojectFedora36

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-43518?
CVE-2021-43518 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43518?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43518?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST