CVE-2021-40589 : Exploit Details and Defense Strategies

ZAngband zangband-data 2.7.5 is affected by an integer underflow vulnerability in src/tk/plat.c through the variable fileheader.bfOffBits.

Understanding CVE-2021-40589

This CVE entry pertains to an integer underflow vulnerability in ZAngband zangband-data 2.7.5.

What is CVE-2021-40589?

The vulnerability involves an integer underflow issue in the src/tk/plat.c file through the fileheader.bfOffBits variable.

The Impact of CVE-2021-40589

The impact of this vulnerability includes potential exploitation by attackers to execute arbitrary code or trigger a denial of service (DoS) condition.

Technical Details of CVE-2021-40589

This section provides technical details regarding the CVE entry.

Vulnerability Description

The vulnerability arises from an integer underflow in src/tk/plat.c, affecting the fileheader.bfOffBits variable.

Affected Systems and Versions

Product: ZAngband zangband-data 2.7.5
Vendor: N/A
Affected Version: N/A

Exploitation Mechanism

Attackers could potentially exploit this vulnerability to launch arbitrary code execution or create a DoS situation.

Mitigation and Prevention

Here are the recommended steps to mitigate and prevent exploitation of CVE-2021-40589.

Immediate Steps to Take

Apply security patches or updates provided by the software vendor.
Employ network security measures to detect and block malicious activities.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify vulnerabilities.
Educate developers and IT staff on secure coding practices and vulnerability management.

Patching and Updates

Stay informed about security advisories and promptly apply patches released by the software vendor.