CVE-2018-5785 : What You Need to Know

OpenJPEG 2.3.0's opj_j2k_setup_encoder function is vulnerable to an integer overflow due to an out-of-bounds left shift, potentially leading to a denial of service attack.

Understanding CVE-2018-5785

This CVE involves a specific vulnerability in OpenJPEG 2.3.0 that could be exploited by remote attackers.

What is CVE-2018-5785?

The opj_j2k_setup_encoder function in OpenJPEG 2.3.0 suffers from an integer overflow triggered by an out-of-bounds left shift. This flaw allows attackers to disrupt services by utilizing a manipulated bmp file.

The Impact of CVE-2018-5785

The vulnerability in OpenJPEG 2.3.0 could be exploited remotely to cause a denial of service, affecting the availability of services relying on the software.

Technical Details of CVE-2018-5785

This section delves into the technical aspects of the CVE.

Vulnerability Description

The opj_j2k_setup_encoder function in OpenJPEG 2.3.0 experiences an integer overflow due to an out-of-bounds left shift, enabling attackers to disrupt services using a crafted bmp file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: OpenJPEG 2.3.0

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by using a manipulated bmp file to trigger the integer overflow, leading to a denial of service.

Mitigation and Prevention

Protecting systems from CVE-2018-5785 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update OpenJPEG to a patched version to mitigate the vulnerability.
Implement network security measures to prevent remote exploitation.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security assessments and audits to identify and address vulnerabilities.

Patching and Updates

Ensure timely patching of OpenJPEG to address the vulnerability and enhance system security.