CVE-2021-39583 : Security Advisory and Response

This CVE-2021-39583 article provides an overview of a vulnerability discovered in swftools, impacting versions up to 20200710, leading to a Denial of Service.

Understanding CVE-2021-39583

CVE-2021-39583 is a vulnerability found in swftools that allows an attacker to trigger a Denial of Service attack through a NULL pointer dereference in pool_lookup_string2() function.

What is CVE-2021-39583?

The vulnerability in swftools up to version 20200710 enables attackers to exploit a NULL pointer dereference in the pool_lookup_string2() function, resulting in a Denial of Service.

The Impact of CVE-2021-39583

The CVE-2021-39583 vulnerability can lead to a Denial of Service attack, potentially disrupting the normal functioning of the affected system.

Technical Details of CVE-2021-39583

This section covers specific technical details of the CVE-2021-39583 vulnerability.

Vulnerability Description

A NULL pointer dereference exists in the pool_lookup_string2() function of swftools, allowing attackers to cause Denial of Service.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions Affected: Up to 20200710

Exploitation Mechanism

The vulnerability can be exploited by manipulating certain input to trigger the NULL pointer dereference, leading to a Denial of Service.

Mitigation and Prevention

Protect your systems from CVE-2021-39583 with the following steps:

Immediate Steps to Take

Apply security patches or updates provided by the vendor.
Monitor official sources for any workaround or mitigation guidance.
Restrict network access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network segmentation to minimize the impact of potential attacks.

Patching and Updates

Stay informed about security updates and patches released by the vendor to address the CVE-2021-39583 vulnerability.