7.5

CVE-2024-21502

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Antonkueltz ≫ Fastecdsa Version < 2.3.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.03% 0.591
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
report@snyk.io 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-457 Use of Uninitialized Variable

The code uses a variable that has not been initialized, leading to unpredictable or unintended results.

CWE-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26
Third Party Advisory
Exploit
https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210
Broken Link
https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36
Patch
https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045
Third Party Advisory
Exploit