Feed/CVE-2021-3420
CVE-2021-3420CRITICALCVSS 9.8

CVE-2021-3420

Published Mar 5, 2021·Updated Jun 16, 2026

NVD Description

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.

CVSS Vector

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

References

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