CVE-2018-16392 : Vulnerability Insights and Analysis

CVE-2018-16392 was published on September 3, 2018, and affects OpenSC versions prior to 0.19.0-rc1. The vulnerability involves buffer overflows in the processing of responses from a TCOS Card, potentially leading to denial of service or other consequences.

Understanding CVE-2018-16392

This CVE entry describes a security vulnerability in OpenSC that could be exploited by attackers manipulating smartcards to trigger buffer overflows.

What is CVE-2018-16392?

The vulnerability in the tcos_select_file function of the libopensc/card-tcos.c file in OpenSC versions before 0.19.0-rc1 allows attackers to cause a denial of service or potentially achieve other unspecified impacts.

The Impact of CVE-2018-16392

The exploitation of this vulnerability could result in a denial of service (application crash) or potentially lead to other adverse consequences due to buffer overflows in the TCOS Card response processing.

Technical Details of CVE-2018-16392

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

Multiple buffer overflows occur when handling responses from a TCOS Card in the tcos_select_file function of libopensc/card-tcos.c in OpenSC versions before 0.19.0-rc1.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions prior to 0.19.0-rc1 of OpenSC

Exploitation Mechanism

Attackers with the ability to provide manipulated smartcards can exploit the buffer overflows in the TCOS Card response processing to cause a denial of service or potentially achieve other impacts.

Mitigation and Prevention

To address CVE-2018-16392, follow these mitigation and prevention strategies:

Immediate Steps to Take

Update OpenSC to version 0.19.0-rc1 or later to mitigate the vulnerability.
Monitor for any unusual smartcard activities that could indicate exploitation.

Long-Term Security Practices

Implement strict input validation mechanisms to prevent buffer overflows.
Regularly review and update security protocols to address emerging threats.

Patching and Updates

Apply patches and updates provided by OpenSC promptly to ensure the security of the system.