CVE-2024-21502
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
24/02/2024
Last modified:
12/02/2025
Description
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.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:antonkueltz:fastecdsa:*:*:*:*:*:*:*:* | 2.3.2 (excluding) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26
- https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210
- https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36
- https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045
- https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26
- https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210
- https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36
- https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045