cvedb.io
CVE-2021-3420
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2021-03-05T21:15:13.437 · Last modified 2026-06-17T04:05:03.413

Summary

A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer overflow, leading to an allocation of a small buffer and then to a heap-based buffer overflow.

Affected products

newlib_project — newlib

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.