CVE-2020-23804 : Exploit Details and Defense Strategies

CVE-2020-23804 involves an uncontrolled recursion vulnerability in pdfinfo and pdftops in poppler 0.89.0, enabling remote attackers to trigger a denial of service through manipulated input.

Understanding CVE-2020-23804

This CVE entry pertains to a specific vulnerability in the poppler software that can be exploited remotely to cause a denial of service.

What is CVE-2020-23804?

The CVE-2020-23804 vulnerability allows attackers to disrupt the normal operation of the affected software by providing specially crafted input, leading to a denial of service condition.

The Impact of CVE-2020-23804

This vulnerability can be exploited remotely by attackers to crash the affected software, potentially disrupting services and causing operational issues.

Technical Details of CVE-2020-23804

This section provides more technical insights into the vulnerability.

Vulnerability Description

The uncontrolled recursion vulnerability in pdfinfo and pdftops in poppler 0.89.0 can be abused by remote attackers to trigger a denial of service by submitting malicious input.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: 0.89.0

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specifically crafted input to the affected components, causing them to enter into an uncontrolled recursion loop and resulting in a denial of service.

Mitigation and Prevention

To address CVE-2020-23804, follow these mitigation strategies.

Immediate Steps to Take

Apply the security update provided by the vendor promptly.
Implement network security measures to prevent unauthorized access.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses.

Patching and Updates

Ensure that the affected software is updated to a version that includes a fix for CVE-2020-23804 to prevent exploitation of this vulnerability.