CVE-2017-6335 : What You Need to Know
Learn about CVE-2017-6335, a vulnerability in GraphicsMagick versions 1.3.25 and earlier that allows remote attackers to trigger a denial of service through an out-of-bounds read and application crash. Find out how to mitigate and prevent this issue.
A vulnerability in the QuantumTransferMode function found in coders/tiff.c within GraphicsMagick versions 1.3.25 and earlier can be exploited by remote attackers to trigger a denial of service through an out-of-bounds read and application crash.
Understanding CVE-2017-6335
This CVE involves a vulnerability in GraphicsMagick that allows remote attackers to cause a denial of service by exploiting a specific function.
What is CVE-2017-6335?
The QuantumTransferMode function in GraphicsMagick versions 1.3.25 and earlier is susceptible to a remote denial of service attack due to an out-of-bounds read and application crash triggered by a small samples per pixel value in a CMYKA TIFF file.
The Impact of CVE-2017-6335
The vulnerability can be exploited remotely by attackers to cause a denial of service, potentially disrupting the availability of the affected system.
Technical Details of CVE-2017-6335
This section provides more technical insights into the vulnerability.
Vulnerability Description
The QuantumTransferMode function in coders/tiff.c in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial of service via a small samples per pixel value in a CMYKA TIFF file.
Affected Systems and Versions
- Affected versions: GraphicsMagick 1.3.25 and earlier
- Systems running GraphicsMagick versions 1.3.25 and below are vulnerable to this exploit.
Exploitation Mechanism
- Attackers can exploit this vulnerability remotely by providing a small value for samples per pixel in a CMYKA TIFF file, leading to an out-of-bounds read and application crash.
Mitigation and Prevention
Protecting systems from this vulnerability requires specific actions.
Immediate Steps to Take
- Update GraphicsMagick to a non-vulnerable version.
- Implement network security measures to prevent remote exploitation.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Conduct security assessments and audits to identify and mitigate vulnerabilities.
Patching and Updates
- Apply the latest patches and updates provided by GraphicsMagick to address this vulnerability.