CVE-2023-33613 : Security Advisory and Response
Learn about the heap buffer overflow vulnerability in axTLS v2.1.5 identified as CVE-2023-33613, allowing attackers to cause a Denial of Service (DoS) attack. Explore impact, technical details, and mitigation steps.
A heap buffer overflow vulnerability in axTLS v2.1.5 has been identified, potentially leading to a Denial of Service (DoS) attack. Here is a detailed analysis of the CVE-2023-33613.
Understanding CVE-2023-33613
This section delves into the critical aspects of the CVE-2023-33613 vulnerability.
What is CVE-2023-33613?
The CVE-2023-33613 vulnerability exists in axTLS v2.1.5 due to a heap buffer overflow in the bi_import function in axtls-code/crypto/bigint.c. This flaw can be exploited by attackers to trigger a DoS condition while parsing a private key.
The Impact of CVE-2023-33613
The impact of this vulnerability includes the potential for attackers to disrupt services and applications relying on axTLS v2.1.5, leading to service downtime and unavailability.
Technical Details of CVE-2023-33613
Explore the technical specifics of CVE-2023-33613 to comprehend its implications better.
Vulnerability Description
The vulnerability stems from a heap buffer overflow in the bi_import function, making it possible for threat actors to execute a DoS attack by manipulating the private key parsing process in axTLS v2.1.5.
Affected Systems and Versions
The affected system includes axTLS v2.1.5, and all prior iterations, showcasing the significance of updating to patched versions promptly.
Exploitation Mechanism
Exploiting this vulnerability involves crafting specifically designed inputs to trigger the heap buffer overflow in the bi_import function, thereby causing service disruptions.
Mitigation and Prevention
Discover the strategies to mitigate and prevent the exploitation of CVE-2023-33613 for enhanced cybersecurity.
Immediate Steps to Take
Immediately cease the utilization of the impacted axTLS v2.1.5 version and implement security measures to thwart potential attacks until a patch is available.
Long-Term Security Practices
Incorporate robust security practices such as regular vulnerability assessments, code reviews, and security updates to fortify defenses against such vulnerabilities.
Patching and Updates
Ensure timely installation of security patches and updates provided by axTLS to address the heap buffer overflow vulnerability and enhance system resilience against attacks.