CVE-2020-12268 : Security Advisory and Response

Artifex jbig2dec before 0.18 is affected by a heap-based buffer overflow in jbig2_image_compose in jbig2_image.c.

Understanding CVE-2020-12268

This CVE involves a specific vulnerability in Artifex jbig2dec before version 0.18, leading to a heap-based buffer overflow.

What is CVE-2020-12268?

The vulnerability in jbig2dec before version 0.18 allows attackers to trigger a heap-based buffer overflow.

The Impact of CVE-2020-12268

The heap-based buffer overflow in jbig2dec could potentially be exploited by malicious actors to execute arbitrary code or cause a denial of service (DoS) condition.

Technical Details of CVE-2020-12268

Artifex jbig2dec before 0.18 is susceptible to a heap-based buffer overflow.

Vulnerability Description

The vulnerability exists in the jbig2_image_compose function in jbig2_image.c.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious input that triggers the heap-based buffer overflow.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-12268.

Immediate Steps to Take

Apply the security update to version 0.18 or later provided by Artifex.
Monitor official sources for any further advisories or patches related to this vulnerability.

Long-Term Security Practices

Regularly update and patch software to the latest versions to prevent known vulnerabilities.
Implement proper input validation mechanisms to mitigate buffer overflow vulnerabilities.
Conduct regular security assessments and audits to identify and address potential security issues.

Patching and Updates

Ensure that all systems running Artifex jbig2dec are updated to version 0.18 or above to address the heap-based buffer overflow vulnerability.