CVE-2018-19539 : Exploit Details and Defense Strategies

A vulnerability has been found in JasPer version 2.0.14, specifically in the function jas_image_readcmpt in the libjasper/base/jas_image.c file. This vulnerability can lead to an access violation, resulting in a denial of service.

Understanding CVE-2018-19539

This CVE entry highlights a security issue in JasPer version 2.0.14 that can be exploited to cause a denial of service.

What is CVE-2018-19539?

CVE-2018-19539 is a vulnerability in JasPer 2.0.14 that allows attackers to trigger an access violation by exploiting the jas_image_readcmpt function, potentially leading to a denial of service.

The Impact of CVE-2018-19539

The vulnerability in CVE-2018-19539 can result in a denial of service, impacting the availability of the affected system.

Technical Details of CVE-2018-19539

This section provides more technical insights into the CVE-2018-19539 vulnerability.

Vulnerability Description

The vulnerability lies in the jas_image_readcmpt function in the libjasper/base/jas_image.c file of JasPer 2.0.14, allowing for an access violation.

Affected Systems and Versions

Affected Version: JasPer 2.0.14
Systems using JasPer version 2.0.14 are vulnerable to this exploit.

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the jas_image_readcmpt function, triggering an access violation and subsequently causing a denial of service.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2018-19539, consider the following steps:

Immediate Steps to Take

Update JasPer to a patched version that addresses the vulnerability.
Implement network security measures to detect and block potential exploitation attempts.

Long-Term Security Practices

Regularly monitor for security advisories and updates related to JasPer.
Conduct security assessments and penetration testing to identify and mitigate vulnerabilities.

Patching and Updates

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