vulnerability
Alpine Linux: CVE-2021-3420: Integer Overflow or Wraparound
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Mar 5, 2021 | Aug 22, 2024 | Dec 5, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Mar 5, 2021
Added
Aug 22, 2024
Modified
Dec 5, 2025
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.
Solution
alpine-linux-upgrade-newlib
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