CVE-2020-35843 : Security Advisory and Response
Learn about CVE-2020-35843, an out-of-bounds write vulnerability in FastStone Image Viewer 7.5 that could allow attackers to execute arbitrary code. Find mitigation steps and prevention measures here.
FastStone Image Viewer 7.5 has an out-of-bounds write vulnerability that can be exploited via a crafted image file.
Understanding CVE-2020-35843
FastStone Image Viewer 7.5 is susceptible to an out-of-bounds write vulnerability that can be triggered by a specially crafted image file.
What is CVE-2020-35843?
The CVE-2020-35843 vulnerability involves an out-of-bounds write issue in FastStone Image Viewer 7.5, specifically at FSViewer.exe+0x956e.
The Impact of CVE-2020-35843
This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the out-of-bounds write issue.
Technical Details of CVE-2020-35843
FastStone Image Viewer 7.5 vulnerability details.
Vulnerability Description
The vulnerability in FastStone Image Viewer 7.5 allows for an out-of-bounds write via a specially crafted image file.
Affected Systems and Versions
- Product: FastStone Image Viewer 7.5
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability can be exploited by an attacker through a malicious image file triggering the out-of-bounds write at FSViewer.exe+0x956e.
Mitigation and Prevention
Steps to mitigate the CVE-2020-35843 vulnerability.
Immediate Steps to Take
- Avoid opening image files from untrusted or unknown sources.
- Update FastStone Image Viewer to the latest version once a patch is released.
Long-Term Security Practices
- Regularly update software and applications to patch known vulnerabilities.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
Stay informed about security updates for FastStone Image Viewer and apply patches promptly to address the CVE-2020-35843 vulnerability.