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CVE-2024-9482— Out of Bounds write on scan of malformed Mach-O file may crash the application

Quick assessment

Affected
AVG/Avast Antivirus
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.

Avast Antivirus是捷克Avast公司的一套杀毒软件。 Avast Antivirus 24092400之前版本存在安全漏洞，该漏洞源于存在越界写入问题，在处理畸形的Mach-O文件时，可能会导致应用程序在MacOS系统上崩溃。

CVSS 5.1 · Medium EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2024-9482

Vulnerability Information
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Vulnerability Title
Out of Bounds write on scan of malformed Mach-O file may crash the application
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write in the engine module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS allows a malformed Mach-O file to crash the application during file processing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Avast Antivirus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Avast Antivirus是捷克Avast公司的一套杀毒软件。 Avast Antivirus 24092400之前版本存在安全漏洞，该漏洞源于存在越界写入问题，在处理畸形的Mach-O文件时，可能会导致应用程序在MacOS系统上崩溃。
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
AVG/Avast Antivirus 24/Sep/2024 ~ < 24092400 -

II. Public POCs for CVE-2024-9482

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III. Intelligence Information for CVE-2024-9482

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Vendor Advisories for CVE-2024-9482 (1)

Same Patch Batch · AVG/Avast · 2024-10-04 · 4 CVEs total

CVE-2024-9483 5.1 MEDIUM Uninitialized variable in digital signiture verification may crash the application
CVE-2024-9484 5.1 MEDIUM Avast Antivirus 安全漏洞
CVE-2024-9481 5.1 MEDIUM Out of Bounds write on scan of malformed eml file may crash the application

IV. Related Vulnerabilities

Same product: Antivirus
Same vendor: AVG/Avast
Same weakness: CWE-787

V. Comments for CVE-2024-9482

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