CVE-2019-13113 : Security Advisory and Response

Exiv2 through version 0.27.1 is vulnerable to a denial of service attack due to an assertion failure triggered by improper data positioning in a CRW image file.

Understanding CVE-2019-13113

This CVE entry describes a vulnerability in Exiv2 that could be exploited by an attacker to cause a crash in the affected versions.

What is CVE-2019-13113?

CVE-2019-13113 is a vulnerability in Exiv2 versions up to 0.27.1 that allows an attacker to execute a denial of service attack by manipulating data in a CRW image file.

The Impact of CVE-2019-13113

The vulnerability can lead to a crash in the Exiv2 software, resulting in a denial of service condition for users or systems processing CRW image files.

Technical Details of CVE-2019-13113

Exiv2 vulnerability details and affected systems.

Vulnerability Description

An attacker can exploit versions of Exiv2 up to 0.27.1 to trigger a denial of service by causing a crash due to an assertion failure, through an improper data position in a CRW image file.

Affected Systems and Versions

Product: Exiv2
Vendor: N/A
Versions affected: Up to 0.27.1

Exploitation Mechanism

The vulnerability is exploited by manipulating data in a CRW image file, leading to an assertion failure and subsequent denial of service.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2019-13113.

Immediate Steps to Take

Update Exiv2 to a patched version if available.
Avoid opening CRW image files from untrusted sources.

Long-Term Security Practices

Regularly update software to the latest versions.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Apply patches provided by Exiv2 to address the vulnerability and prevent potential denial of service attacks.