CVE-2019-11505 : What You Need to Know

A heap-based buffer overflow vulnerability has been identified in GraphicsMagick versions 1.3.8 to 1.4 snapshot-20190403 Q8, allowing attackers to trigger denial of service or other unspecified consequences.

Understanding CVE-2019-11505

This CVE involves a specific vulnerability in GraphicsMagick that could have severe implications if exploited.

What is CVE-2019-11505?

The vulnerability exists in the WritePDBImage function of the pdb.c file in the coders directory of GraphicsMagick. By using a malicious image file, an attacker can exploit this heap-based buffer overflow.

The Impact of CVE-2019-11505

Exploiting this vulnerability could lead to a denial of service condition or potentially other unspecified consequences. It is directly associated with the MagickBitStreamMSBWrite function in the bit_stream.c file.

Technical Details of CVE-2019-11505

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability is a heap-based buffer overflow in the WritePDBImage function of GraphicsMagick, allowing attackers to disrupt services or cause other impacts through crafted image files.

Affected Systems and Versions

Affected Versions: GraphicsMagick 1.3.8 to 1.4 snapshot-20190403 Q8

Exploitation Mechanism

The vulnerability can be exploited by utilizing a malicious image file to trigger the heap-based buffer overflow in GraphicsMagick.

Mitigation and Prevention

Protecting systems from CVE-2019-11505 is crucial to maintaining security.

Immediate Steps to Take

Update GraphicsMagick to a patched version that addresses the vulnerability.
Avoid opening image files from untrusted or unknown sources.

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 all systems running affected versions of GraphicsMagick are updated with the latest patches to mitigate the vulnerability.