CVE-2025-34297

KissFFT versions prior to the fix commit 1b083165 contain an integer overflow in kiss_fft_alloc() in kiss_fft.c on platforms where size_t is 32-bit. The nfft parameter is not validated before being used in a size calculation (sizeof(kiss_fft_cpx) * (nfft - 1)), which can wrap to a small value when nfft is large. As a result, malloc() allocates an undersized buffer and the subsequent twiddle-factor initialization loop writes nfft elements, causing a heap buffer overflow. This vulnerability only affects 32-bit architectures.

CVSS

No CVSS.

References

Link	Resource
https://github.com/mborgerding/kissfft/commit/1b08316582049c3716154caefc0deab8758506e3
https://github.com/mborgerding/kissfft/issues/120
https://www.vulncheck.com/advisories/kissfft-integer-overflow-heap-buffer-overflow

Configurations

No configuration.

History

18 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Versiones de KissFFT anteriores al commit de corrección 1b083165 contienen un desbordamiento de entero en kiss_fft_alloc() en kiss_fft.c en plataformas donde size_t es de 32 bits. El parámetro nfft no se valida antes de ser utilizado en un cálculo de tamaño (sizeof(kiss_fft_cpx) * (nfft - 1)), lo que puede envolver a un valor pequeño cuando nfft es grande. Como resultado, malloc() asigna un búfer de tamaño insuficiente y el bucle de inicialización de factores de giro subsiguiente escribe nfft elementos, causando un desbordamiento de búfer de pila. Esta vulnerabilidad solo afecta a arquitecturas de 32 bits.

Information

Published : 2025-12-01 19:15

Updated : 2026-10-18 20:10

NVD link : CVE-2025-34297

Mitre link : CVE-2025-34297

CVE.ORG link : CVE-2025-34297

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

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