CVE-2018-14423 : Security Advisory and Response

OpenJPEG Library Division-by-Zero Vulnerabilities

Understanding CVE-2018-14423

What is CVE-2018-14423?

CVE-2018-14423 refers to division-by-zero vulnerabilities found in specific functions within the OpenJPEG library, version 2.3.0 or earlier. These vulnerabilities can be exploited by remote attackers to cause a denial-of-service condition, leading to application crashes.

The Impact of CVE-2018-14423

The exploitation of these vulnerabilities can result in a denial-of-service attack, causing the targeted application to crash.

Technical Details of CVE-2018-14423

Vulnerability Description

The vulnerabilities exist in the functions pi_next_pcrl, pi_next_cprl, and pi_next_rpcl within the pi.c file of the OpenJPEG library, allowing remote attackers to trigger a division-by-zero error.

Affected Systems and Versions

OpenJPEG library versions 2.3.0 and earlier

Exploitation Mechanism

Remote attackers can exploit the vulnerabilities to trigger a denial-of-service condition, leading to application crashes.

Mitigation and Prevention

Immediate Steps to Take

Update the OpenJPEG library to a version that includes a patch for CVE-2018-14423
Monitor vendor advisories for security updates

Long-Term Security Practices

Regularly update software and libraries to the latest secure versions
Implement network security measures to prevent remote exploitation

Patching and Updates

Apply patches provided by the OpenJPEG library or relevant vendors to address the division-by-zero vulnerabilities.