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CVE-2021-4198— messaging_ipc.dll NULL Pointer Dereference in multiple Bitdefender products (VA-10016)

Quick assessment

Affected
Bitdefender Total Security
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Bitdefender Total Security是罗马尼亚Bitdefender公司的一款应用于PC端的主动威胁防护软件。该软件具有防病毒，防火墙，反间谍软件，隐私控制，家长控制功能。还包括System TuneUp等功能。 Bitdefender Total Security 存在安全漏洞，该漏洞允许攻击者可利用该漏洞任意地使产品进程崩溃并生成崩溃转储文件。

CVSS 6.1 · Medium EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-4198

Vulnerability Information
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Vulnerability Title
messaging_ipc.dll NULL Pointer Dereference in multiple Bitdefender products (VA-10016)
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Bitdefender Total Security 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bitdefender Total Security是罗马尼亚Bitdefender公司的一款应用于PC端的主动威胁防护软件。该软件具有防病毒，防火墙，反间谍软件，隐私控制，家长控制功能。还包括System TuneUp等功能。 Bitdefender Total Security 存在安全漏洞，该漏洞允许攻击者可利用该漏洞任意地使产品进程崩溃并生成崩溃转储文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Bitdefender Total Security unspecified ~ 26.0.3.29 -
Bitdefender Internet Security unspecified ~ 26.0.3.29 -
Bitdefender Antivirus Plus unspecified ~ 26.0.3.29 -
Bitdefender Endpoint Security Tools unspecified ~ 7.2.2.92 -
Bitdefender VPN Standalone unspecified ~ 25.5.0.48 -

II. Public POCs for CVE-2021-4198

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III. Intelligence Information for CVE-2021-4198

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Vendor Advisories for CVE-2021-4198 (1)

Other References for CVE-2021-4198 (1)

IV. Related Vulnerabilities

Same product: Total Security
Same vendor: Bitdefender
Same weakness: CWE-476

V. Comments for CVE-2021-4198

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