6.1
MEDIUM
CVE-2021-4198
Bitdefender NULL Pointer Dereference Vulnerability
Description

A NULL Pointer Dereference vulnerability in the messaging_ipc.dll component as used in Bitdefender Total Security, Internet Security, Antivirus Plus, Endpoint Security Tools, VPN Standalone allows an attacker to arbitrarily crash product processes and generate crashdump files. This issue affects: Bitdefender Total Security versions prior to 26.0.3.29. Bitdefender Internet Security versions prior to 26.0.3.29. Bitdefender Antivirus Plus versions prior to 26.0.3.29. Bitdefender Endpoint Security Tools versions prior to 7.2.2.92. Bitdefender VPN Standalone versions prior to 25.5.0.48.

INFO

Published Date :

March 7, 2022, 12:15 p.m.

Last Modified :

March 11, 2022, 7:18 p.m.

Remotely Exploitable :

No

Impact Score :

4.2

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-4198 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Bitdefender antivirus_plus
2 Bitdefender internet_security
3 Bitdefender total_security
4 Bitdefender endpoint_security_tools
5 Bitdefender vpn_standalone
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-4198.

URL Resource
https://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-pointer-dereference-in-multiple-bitdefender-products-va-10016/ Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-483/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-4198 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-4198 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Mar. 11, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
    Changed Reference Type https://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-pointer-dereference-in-multiple-bitdefender-products-va-10016/ No Types Assigned https://www.bitdefender.com/support/security-advisories/messaging_ipc-dll-null-pointer-dereference-in-multiple-bitdefender-products-va-10016/ Vendor Advisory
    Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-22-483/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-22-483/ Third Party Advisory
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:a:bitdefender:antivirus_plus:*:*:*:*:*:*:*:* versions up to (excluding) 26.0.3.29 *cpe:2.3:a:bitdefender:endpoint_security_tools:*:*:*:*:*:*:*:* versions up to (excluding) 7.2.2.92 *cpe:2.3:a:bitdefender:internet_security:*:*:*:*:*:*:*:* versions up to (excluding) 26.0.3.29 *cpe:2.3:a:bitdefender:total_security:*:*:*:*:*:*:*:* versions up to (excluding) 26.0.3.29 *cpe:2.3:a:bitdefender:vpn_standalone:*:*:*:*:*:*:*:* versions up to (excluding) 25.5.0.48
  • CVE Modified by [email protected]

    Mar. 10, 2022

    Action Type Old Value New Value
    Changed Description A NULL Pointer Dereference vulnerability in the messaging_ipc.dll component as used in Bitdefender Total Security, Internet Security, Antivirus Plus, Endpoint Security Tools, VPN Standalone allows an attacker to arbitrarily crash product processes and generate crashdump files. This issue affects: Bitdefender Total Security versions prior to 26.0.3.29. Bitdefender Internet Security versions prior to 26.0.3.29. Bitdefender Antivirus Plus versions prior to 26.0.3.29. Bitdefender Endpoint Security Tools versions prior to 7.2.2.92. Bitdefender VPN Standalone versions prior to 25.5.0.48. A NULL Pointer Dereference vulnerability in the messaging_ipc.dll component as used in Bitdefender Total Security, Internet Security, Antivirus Plus, Endpoint Security Tools, VPN Standalone allows an attacker to arbitrarily crash product processes and generate crashdump files. This issue affects: Bitdefender Total Security versions prior to 26.0.3.29. Bitdefender Internet Security versions prior to 26.0.3.29. Bitdefender Antivirus Plus versions prior to 26.0.3.29. Bitdefender Endpoint Security Tools versions prior to 7.2.2.92. Bitdefender VPN Standalone versions prior to 25.5.0.48.
    Added Reference https://www.zerodayinitiative.com/advisories/ZDI-22-483/ [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-4198 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-4198 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.02%

score

0.25198

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability