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CVE-2024-11477— 7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability

Quick assessment

Affected
7-Zip 7-Zip
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

7-Zip是7-Zip开源的一个压缩软件。 7-Zip存在数字错误漏洞，该漏洞源于Zstandard解压缩过程中对用户提供的数据验证不当，可能导致整数下溢，并在写入内存前执行任意代码。

AI Predicted 9.8 Difficulty: Moderate EPSS 22.56% · P98

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-11477

Vulnerability Information
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Vulnerability Title
7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the implementation of Zstandard decompression. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24346.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
Source: CVE Program / CVE List V5
Vulnerability Title
7-Zip 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
7-Zip是7-Zip开源的一个压缩软件。 7-Zip存在数字错误漏洞，该漏洞源于Zstandard解压缩过程中对用户提供的数据验证不当，可能导致整数下溢，并在写入内存前执行任意代码。
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
7-Zip 7-Zip 24.06 -

II. Public POCs for CVE-2024-11477

# POC Description Source Link Shenlong Link
1 CVE-2024-11477 7Zip Code Execution Writeup and Analysis https://github.com/TheN00bBuilder/cve-2024-11477-writeup POC Details
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III. Intelligence Information for CVE-2024-11477

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IV. Related Vulnerabilities

Same product: 7-Zip
Same vendor: 7-Zip
Same weakness: CWE-191

V. Comments for CVE-2024-11477

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