CVE-2021-39598 : Security Advisory and Response

This CVE-2021-39598 article provides details about a vulnerability in swftools that allows an attacker to cause Denial of Service due to a NULL pointer dereference.

Understanding CVE-2021-39598

swftools through 20200710 is affected by a NULL pointer dereference vulnerability in the function callcode() in code.c.

What is CVE-2021-39598?

This CVE refers to a vulnerability in swftools that allows an attacker to trigger Denial of Service by exploiting a NULL pointer dereference in the callcode() function.

The Impact of CVE-2021-39598

The vulnerability can be exploited by an attacker to cause Denial of Service on systems running the affected versions of swftools.

Technical Details of CVE-2021-39598

The technical aspects of the CVE-2021-39598 vulnerability are outlined below.

Vulnerability Description

A NULL pointer dereference vulnerability exists in the function callcode() located in code.c in swftools through 20200710.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: n/a
Status: Affected

Exploitation Mechanism

The vulnerability can be exploited by an attacker to cause Denial of Service on systems running the specified versions of swftools.

Mitigation and Prevention

Steps to address and prevent the exploitation of CVE-2021-39598 are detailed below.

Immediate Steps to Take

Apply vendor patches if available.
Monitor vendor's website for updates.
Restrict network access to vulnerable systems.

Long-Term Security Practices

Implement secure coding practices.
Perform regular security assessments of software.

Patching and Updates

Keep software and systems up to date with the latest security patches and updates.