CVSS 3.1 Score 7.5 of 10 (high)


Published Feb 24, 2024
Updated: Feb 26, 2024
CWE ID 457


CVE-2024-21502 is a vulnerability in versions of the package fastecdsa prior to 2.3.2. It is classified as a "Use of Uninitialized Variable on the stack" vulnerability, which can be exploited by an attacker to corrupt the allocator structure and potentially lead to heap exploitation. The vulnerability is caused by an uninitialized variable being used and interpreted as a user-defined type in the curvemath_mul function of src/curveMath.c. It poses a high danger to organizations as it can allow for arbitrary free(), arbitrary realloc(), null pointer dereference, and other actions depending on the variable's value. Exploiting this vulnerability can result in denial of service attacks. To remediate this vulnerability, it is recommended to update to version 2.3.2 or later of fastecdsa package.

Explore Beyond the CVE Basics with Recorded Future's Vulnerability Intelligence

Note: This is just a basic overview providing quick insights into CVE-2024-21502 information. Gain full access to comprehensive CVE data, risk scores, prioritization, and mitigation data through Recorded Future's Vulnerability Intelligence:
  • Prioritize with Risk-Based Scoring
  • Explore the Extensive Vulnerability Database
  • Receive Early Alerts on Emerging CVEs
  • Focus on Critical Exploitable Vulnerabilities
  • Streamline Remediation with Integration Options