CVE-2019-17362 : Vulnerability Insights and Analysis

A vulnerability has been discovered in LibTomCrypt versions up to 1.18.2, affecting the der_decode_utf8_string function. This vulnerability could lead to denial of service, out-of-bounds read, or unauthorized access to memory locations.

Understanding CVE-2019-17362

This CVE identifies a specific vulnerability in LibTomCrypt versions up to 1.18.2.

What is CVE-2019-17362?

The vulnerability lies in the der_decode_utf8_string function, failing to accurately identify invalid UTF-8 sequences, which attackers can exploit to cause denial of service or unauthorized access.

The Impact of CVE-2019-17362

Attackers can exploit this vulnerability to cause a denial of service, leading to a crash or unauthorized access to memory locations.

Technical Details of CVE-2019-17362

This section provides technical details of the vulnerability.

Vulnerability Description

The der_decode_utf8_string function in LibTomCrypt versions up to 1.18.2 is susceptible to exploitation due to inaccurate identification of invalid UTF-8 sequences.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: Up to 1.18.2

Exploitation Mechanism

Attackers can exploit this vulnerability by carefully constructing DER-encoded data.

Mitigation and Prevention

Protective measures to address CVE-2019-17362.

Immediate Steps to Take

Update LibTomCrypt to version 1.18.3 or later.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Apply patches provided by the software vendor to mitigate the vulnerability.