CVE-2019-15144 : Exploit Details and Defense Strategies

DjVuLibre 3.5.27 is vulnerable to a denial-of-service attack due to a flaw in the sorting functionality. Attackers can exploit this vulnerability by manipulating a PBM image file, leading to an application crash. Here's what you need to know about CVE-2019-15144.

Understanding CVE-2019-15144

DjVuLibre 3.5.27's sorting capability is susceptible to exploitation, potentially resulting in a denial-of-service attack.

What is CVE-2019-15144?

In DjVuLibre 3.5.27, the GArrayTemplate<TYPE>::sort function can be abused by attackers to trigger a denial-of-service attack. This involves crashing the application through uncontrolled recursion by manipulating a PBM image file.

The Impact of CVE-2019-15144

The vulnerability allows attackers to crash the application, leading to a denial-of-service condition. The mishandling of PBM image files within libdjvu/GContainer.h facilitates this attack.

Technical Details of CVE-2019-15144

Dive deeper into the technical aspects of this vulnerability.

Vulnerability Description

The sorting functionality in DjVuLibre 3.5.27 can be exploited to cause a denial-of-service attack by manipulating a specific type of image file.

Affected Systems and Versions

Product: DjVuLibre 3.5.27
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit the vulnerability by crafting a PBM image file that triggers uncontrolled recursion, leading to an application crash.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2019-15144.

Immediate Steps to Take

Apply security updates provided by the vendor promptly.
Avoid opening or processing untrusted PBM image files.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement secure coding practices to prevent similar issues in the future.

Patching and Updates

Keep DjVuLibre and related software up to date with the latest security patches.