ubuntu-cve-2025-34297
Vulnerability from osv_ubuntu
Published
2025-12-01 19:15
Modified
2026-05-20 15:17
Summary
Details

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.

Severity
8.6 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "kissfft-tools",
            "binary_version": "131.1.0-2"
          },
          {
            "binary_name": "libkissfft-float131",
            "binary_version": "131.1.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "kissfft",
        "purl": "pkg:deb/ubuntu/kissfft@131.1.0-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "131.1.0-1",
        "131.1.0-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "kissfft-tools",
            "binary_version": "131.1.0-3build2"
          },
          {
            "binary_name": "libkissfft-float131",
            "binary_version": "131.1.0-3build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "kissfft",
        "purl": "pkg:deb/ubuntu/kissfft@131.1.0-3build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "131.1.0-3",
        "131.1.0-3build1",
        "131.1.0-3build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "kissfft-tools",
            "binary_version": "131.1.0-3build2"
          },
          {
            "binary_name": "libkissfft-float131",
            "binary_version": "131.1.0-3build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "kissfft",
        "purl": "pkg:deb/ubuntu/kissfft@131.1.0-3build2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "131.1.0-3build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "kissfft-tools",
            "binary_version": "131.1.0-4"
          },
          {
            "binary_name": "libkissfft-float131",
            "binary_version": "131.1.0-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "kissfft",
        "purl": "pkg:deb/ubuntu/kissfft@131.1.0-4?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "131.1.0-3build2",
        "131.1.0-4"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2025-34297",
  "modified": "2026-05-20T15:17:33Z",
  "published": "2025-12-01T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-34297"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-34297"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/mborgerding/kissfft/issues/120"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-34297"
  ]
}



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