CVE-2018-19185 : What You Need to Know
Learn about CVE-2018-19185, a heap-based buffer overflow vulnerability in libIEC61850 v1.3. Find out the impact, technical details, affected systems, exploitation mechanism, and mitigation steps.
CVE-2018-19185 was published on November 12, 2018, and affects libIEC61850 v1.3. The vulnerability involves a heap-based buffer overflow in the BerEncoder_encodeOctetString function, even after the CVE-2018-18834 issue has been addressed.
Understanding CVE-2018-19185
This CVE identifies a specific security flaw in libIEC61850 v1.3 that allows for a heap-based buffer overflow attack.
What is CVE-2018-19185?
The vulnerability lies in the BerEncoder_encodeOctetString function within the file mms/asn1/ber_encoder.c. It can be exploited by utilizing a distinct dataSetValue sequence instead of the CVE-2018-18834 attack method.
The Impact of CVE-2018-19185
The vulnerability poses a risk of a heap-based buffer overflow, potentially leading to unauthorized access, data corruption, or denial of service.
Technical Details of CVE-2018-19185
CVE-2018-19185 involves specific technical aspects that are crucial to understanding its implications.
Vulnerability Description
The vulnerability is a heap-based buffer overflow in the BerEncoder_encodeOctetString function within the libIEC61850 v1.3 software.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by triggering a heap-based buffer overflow using a distinct dataSetValue sequence.
Mitigation and Prevention
Protecting systems from CVE-2018-19185 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply relevant security patches or updates provided by the software vendor.
- Monitor for any unusual system behavior that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify and address vulnerabilities proactively.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
Regularly check for security advisories and updates from the software vendor to patch known vulnerabilities and enhance system security.