CVE-2019-13112 : Vulnerability Insights and Analysis

CVE-2019-13112 involves uncontrolled memory allocation in Exiv2, potentially leading to a denial of service attack. An attacker could exploit a vulnerability in PngChunk::parseChunkContent by using a specially crafted PNG image file, causing a crash through an std::bad_alloc exception.

Understanding CVE-2019-13112

Exiv2 through version 0.27.1 is susceptible to uncontrolled memory allocation, which could be exploited to trigger a denial of service.

What is CVE-2019-13112?

This CVE pertains to a vulnerability in Exiv2 that allows attackers to cause a denial of service by manipulating memory allocation in a PNG image file.

The Impact of CVE-2019-13112

The vulnerability could lead to a crash in the application, potentially disrupting services or causing instability.

Technical Details of CVE-2019-13112

Exiv2 version 0.27.1 is affected by uncontrolled memory allocation, which can be abused to launch a denial of service attack.

Vulnerability Description

The flaw in Exiv2 allows attackers to exploit memory allocation, potentially resulting in a crash through an std::bad_alloc exception.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions up to and including 0.27.1 are impacted.

Exploitation Mechanism

Attackers can exploit the vulnerability by crafting a specific PNG image file to trigger the uncontrolled memory allocation, leading to a denial of service.

Mitigation and Prevention

To address CVE-2019-13112, immediate steps and long-term security practices are recommended.

Immediate Steps to Take

Update Exiv2 to the latest version to mitigate the vulnerability.
Avoid opening untrusted PNG image files.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network security measures to detect and prevent potential attacks.

Patching and Updates

Ensure that Exiv2 is regularly updated to the latest version to patch known vulnerabilities.