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4.3
CVSSv2

CVE-2020-21677

Published: 10/08/2021 Updated: 17/08/2021
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

A heap-based buffer overflow in the sixel_encoder_output_without_macro function in encoder.c of Libsixel 1.8.4 allows malicious users to cause a denial of service (DOS) via converting a crafted PNG file into Sixel format.

Vulnerability Trend

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libsixel project libsixel 1.8.4

References

CWE-787https://github.com/saitoha/libsixel/issues/123https://nvd.nist.gov
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-22120CVE-2024-35921CVE-2024-35874brute forceCVE-2024-36080unprivilegedCVE-2024-35917IDORCVE-2024-4947
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