CVE-2021-29358 : Security Advisory and Response
Learn about CVE-2021-29358, a buffer overflow vulnerability in Irfanview 4.57 that allows attackers to cause a denial of service via a crafted PVR file. Understand the impact, affected systems, and mitigation steps.
A buffer overflow vulnerability in FORMATS!ReadPVR_W+0xfa of Irfanview 4.57 allows attackers to cause a denial of service (DOS) via a crafted PVR file.
Understanding CVE-2021-29358
This CVE identifies a buffer overflow vulnerability in Irfanview 4.57 that can be exploited by attackers to trigger a denial of service attack.
What is CVE-2021-29358?
CVE-2021-29358 is a security vulnerability in Irfanview 4.57 that allows malicious actors to disrupt the normal operation of the software by exploiting a buffer overflow issue in FORMATS!ReadPVR_W function.
The Impact of CVE-2021-29358
The exploitation of this vulnerability can lead to a denial of service (DoS) condition, potentially causing the affected software to crash or become unresponsive.
Technical Details of CVE-2021-29358
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability exists in the FORMATS!ReadPVR_W+0xfa function of Irfanview 4.57 due to improper handling of crafted PVR files, leading to a buffer overflow condition.
Affected Systems and Versions
Irfanview 4.57 is confirmed to be affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by supplying a specially crafted PVR file to the vulnerable function, triggering a buffer overflow that could result in a DoS condition.
Mitigation and Prevention
To protect systems from potential exploitation of CVE-2021-29358, certain measures need to be implemented.
Immediate Steps to Take
Users are advised to exercise caution when handling PVR files with Irfanview 4.57 and refrain from opening files from untrusted or unknown sources.
Long-Term Security Practices
Regularly updating the software to the latest version and applying security patches from the vendor are recommended to mitigate the risk of exploitation.
Patching and Updates
Ensure that the software is kept up to date with the latest patches and fixes provided by Irfanview to address known vulnerabilities.