CVE-2019-15945 : What You Need to Know
Learn about CVE-2019-15945, a vulnerability in OpenSC before 0.20.0-rc1 allowing unauthorized access to an ASN.1 Bitstring. Find out how to mitigate and prevent exploitation.
OpenSC before version 0.20.0-rc1 has a vulnerability that allows unauthorized access to an ASN.1 Bitstring, specifically in the decode_bit_string function within the libopensc/asn1.c file.
Understanding CVE-2019-15945
This CVE entry details a security vulnerability in OpenSC that could lead to unauthorized access to sensitive data.
What is CVE-2019-15945?
The vulnerability in OpenSC before version 0.20.0-rc1 allows for unauthorized access to an ASN.1 Bitstring, potentially compromising the security of the system.
The Impact of CVE-2019-15945
The vulnerability could be exploited by attackers to gain unauthorized access to sensitive information, leading to potential data breaches and security compromises.
Technical Details of CVE-2019-15945
OpenSC before version 0.20.0-rc1 is susceptible to an out-of-bounds access of an ASN.1 Bitstring in the decode_bit_string function within libopensc/asn1.c.
Vulnerability Description
The vulnerability allows for unauthorized access to an ASN.1 Bitstring, posing a risk of data exposure and security breaches.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: All versions prior to 0.20.0-rc1
Exploitation Mechanism
Attackers can exploit this vulnerability to gain unauthorized access to the ASN.1 Bitstring, potentially leading to data leaks and security incidents.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Update OpenSC to version 0.20.0-rc1 or later to mitigate the vulnerability.
- Monitor system logs for any suspicious activities that could indicate exploitation attempts.
Long-Term Security Practices
- Regularly update and patch software to ensure the latest security fixes are in place.
- Conduct security assessments and audits to identify and address any potential vulnerabilities.
Patching and Updates
- Apply patches and updates provided by OpenSC promptly to address security vulnerabilities and enhance system security.