CVE-2024-21502
Fastecdsa Use of Uninitialized Variable Heap Overflow Vulnerability
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.
INFO
Published Date :
Feb. 24, 2024, 5:15 a.m.
Last Modified :
Feb. 12, 2025, 6:49 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2024-21502
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-21502.
| URL | Resource |
|---|---|
| https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 | Exploit Third Party Advisory |
| 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 | Exploit Third Party Advisory |
| https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 | Exploit Third Party Advisory |
| 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 | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-21502 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-21502 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 12, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE NIST CWE-908 Added CPE Configuration OR *cpe:2.3:a:antonkueltz:fastecdsa:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.2 Changed Reference Type https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 No Types Assigned https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 Exploit, Third Party Advisory Changed Reference Type https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 No Types Assigned https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 Exploit, Third Party Advisory Changed Reference Type https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 No Types Assigned https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 Broken Link Changed Reference Type https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 No Types Assigned https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 Broken Link Changed Reference Type https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 No Types Assigned https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 Patch Changed Reference Type https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 No Types Assigned https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 Patch Changed Reference Type https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 No Types Assigned https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 Exploit, Third Party Advisory Changed Reference Type https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 No Types Assigned https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 Exploit, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 Added Reference https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 Added Reference https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 Added Reference https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Received by [email protected]
Feb. 24, 2024
Action Type Old Value New Value Added 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. Added Reference Snyk https://security.snyk.io/vuln/SNYK-PYTHON-FASTECDSA-6262045 [No types assigned] Added Reference Snyk https://gist.github.com/keltecc/49da037072276f21b005a8337c15db26 [No types assigned] Added Reference Snyk https://github.com/AntonKueltz/fastecdsa/blob/v2.3.1/src/curveMath.c%23L210 [No types assigned] Added Reference Snyk https://github.com/AntonKueltz/fastecdsa/commit/57fc5689c95d649dab7ef60cc99ac64589f01e36 [No types assigned] Added CWE Snyk CWE-457 Added CVSS V3.1 Snyk AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-21502 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-21502
weaknesses.