CVE-2019-6502 : Vulnerability Insights and Analysis

CVE-2019-6502 is a memory leak vulnerability in the OpenSC 0.19.0 library, specifically in the function sc_context_create in ctx.c. This vulnerability was demonstrated through a call made from eidenv.

Understanding CVE-2019-6502

What is CVE-2019-6502?

The CVE-2019-6502 vulnerability involves a memory leak in the OpenSC 0.19.0 library, impacting the function sc_context_create in ctx.c.

The Impact of CVE-2019-6502

This vulnerability could potentially lead to memory exhaustion and system instability, affecting the overall performance and security of the system.

Technical Details of CVE-2019-6502

Vulnerability Description

The memory leak occurs in the function sc_context_create within the OpenSC 0.19.0 library, triggered by a call from eidenv.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions of OpenSC 0.19.0 are affected.

Exploitation Mechanism

The vulnerability can be exploited by an attacker to exhaust system memory, potentially leading to denial of service or system crashes.

Mitigation and Prevention

Immediate Steps to Take

Monitor for any unusual memory consumption on systems using OpenSC 0.19.0.
Consider restricting access to vulnerable systems.

Long-Term Security Practices

Regularly update software and libraries to patched versions.
Implement proper input validation and error handling in software development.

Patching and Updates

Update to the latest version of OpenSC to mitigate the memory leak vulnerability.