CVE-2018-19535 : What You Need to Know

CVE-2018-19535 pertains to a vulnerability in the Exiv2 software prior to version 0.26, specifically within the pngchunk_int.cpp file. This flaw in the PngChunk::readRawProfile function can be exploited to trigger a denial of service attack by causing a heap-based buffer over-read issue through a manipulated PNG file.

Understanding CVE-2018-19535

This CVE entry highlights a specific vulnerability in the Exiv2 software that could lead to a denial of service attack.

What is CVE-2018-19535?

The vulnerability in the PngChunk::readRawProfile function of Exiv2 software can result in a denial of service attack, potentially crashing the application by exploiting a heap-based buffer over-read issue.

The Impact of CVE-2018-19535

The exploitation of this vulnerability can lead to a denial of service attack, causing the application to crash.

Technical Details of CVE-2018-19535

This section provides technical details about the CVE-2018-19535 vulnerability.

Vulnerability Description

The vulnerability exists in the PngChunk::readRawProfile function of Exiv2 software, allowing for a denial of service attack through a manipulated PNG file.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Affected Version: n/a

Exploitation Mechanism

The vulnerability can be triggered by utilizing a manipulated PNG file to exploit the heap-based buffer over-read issue.

Mitigation and Prevention

Protective measures to address CVE-2018-19535.

Immediate Steps to Take

Update Exiv2 software to version 0.26 or later.
Avoid opening or processing untrusted PNG files.

Long-Term Security Practices

Regularly update software and apply security patches.
Conduct security assessments to identify and mitigate vulnerabilities.

Patching and Updates

Ensure timely installation of security updates and patches provided by Exiv2 to address the vulnerability.