CVE-2024-21502

Katalog CVE

CVSS 7.5 · High EPSS 1,0%

Kerentanan Use of Uninitialized Variable pada antonkueltz fastecdsa. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Versions of the package fastecdsa before 2.3.2 are vulnerable to Use of Uninitialized Variable on the stack, via the curvemath_mul function in src/curveMath.c, due to being used and interpreted as user-defined type. Depending on the variable's actual value it could be arbitrary free(), arbitrary realloc(), null pointer dereference and other. Since the stack can be controlled by the attacker, the vulnerability could be used to corrupt allocator structure, leading to possible heap exploitation. The attacker could cause denial of service by exploiting this vulnerability.

Rincian

Terbit di NVD

24 Februari 2024

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-457: Use of Uninitialized Variable
CWE-908: Use of Uninitialized Resource

EPSS (30 hari)

1,0% peluang dieksploitasi; lebih tinggi dari 62,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 patch
• https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 exploit · advisory pihak ketiga
• https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 exploit · advisory pihak ketiga
• https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 broken link