CVE-2019-13305 : What You Need to Know

A stack-based buffer overflow vulnerability has been discovered in version 7.0.8-50 Q16 of ImageMagick. This vulnerability is located in the pnm.c file of the coders directory and is caused by a misplaced strncpy function and an off-by-one error.

Understanding CVE-2019-13305

ImageMagick 7.0.8-50 Q16 has a stack-based buffer overflow at coders/pnm.c in WritePNMImage because of a misplaced strncpy and an off-by-one error.

What is CVE-2019-13305?

CVE-2019-13305 is a stack-based buffer overflow vulnerability found in ImageMagick version 7.0.8-50 Q16. The issue arises from a misplaced strncpy function and an off-by-one error in the pnm.c file within the coders directory.

The Impact of CVE-2019-13305

This vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service by crashing the application.

Technical Details of CVE-2019-13305

ImageMagick 7.0.8-50 Q16 has a stack-based buffer overflow at coders/pnm.c in WritePNMImage due to a misplaced strncpy and an off-by-one error.

Vulnerability Description

The vulnerability in ImageMagick version 7.0.8-50 Q16 is a stack-based buffer overflow caused by a misplaced strncpy function and an off-by-one error in the pnm.c file.

Affected Systems and Versions

Product: ImageMagick
Version: 7.0.8-50 Q16

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious image file that triggers the buffer overflow when processed by ImageMagick.

Mitigation and Prevention

To address CVE-2019-13305, follow these steps:

Immediate Steps to Take

Update ImageMagick to a non-vulnerable version.
Implement proper input validation to prevent buffer overflows.

Long-Term Security Practices

Regularly update software and apply security patches.
Conduct security audits and code reviews to identify and fix vulnerabilities.

Patching and Updates

Ensure that ImageMagick is regularly updated to the latest version to mitigate the risk of exploitation.