CVE-2020-35133 : Security Advisory and Response
Learn about CVE-2020-35133, a vulnerability in IrfanView 4.56 that allows out-of-bounds writing when handling .pcx files. Find mitigation steps and prevention measures here.
IrfanView 4.56 contains a vulnerability when processing .pcx files, leading to out-of-bounds writing at i_view32+0xdb60.
Understanding CVE-2020-35133
This CVE involves a specific vulnerability in IrfanView 4.56 that can be exploited through the parsing of .pcx files.
What is CVE-2020-35133?
The vulnerability in IrfanView 4.56 allows for out-of-bounds writing at i_view32+0xdb60 when handling .pcx files.
The Impact of CVE-2020-35133
The vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service on the affected system.
Technical Details of CVE-2020-35133
This section provides more technical insights into the CVE.
Vulnerability Description
IrfanView 4.56 mishandles parsing of .pcx files, resulting in out-of-bounds writing at i_view32+0xdb60.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious .pcx file to trigger the out-of-bounds writing.
Mitigation and Prevention
Protecting systems from CVE-2020-35133 is crucial to prevent potential exploitation.
Immediate Steps to Take
- Avoid opening untrusted .pcx files with IrfanView 4.56.
- Consider using alternative image viewing applications until a patch is available.
Long-Term Security Practices
- Regularly update IrfanView to the latest version to mitigate known vulnerabilities.
- Implement network security measures to detect and block malicious file uploads.
Patching and Updates
Stay informed about security updates for IrfanView and apply patches promptly to address CVE-2020-35133.