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CVE-2020-27787

Quick assessment

Affected
n/a upx
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.

UPX是一款可移植、可扩展的可执行压缩程序。 UPX 3.96版本存在安全漏洞，该漏洞源于p_lx_elf.cpp的invert_pt_dynamic()函数中发现了Segmentaation错误，攻击者利用精心制作的输入文件允许无效的内存地址访问，这可能导致拒绝服务。

AI Predicted 5.3 Difficulty: Easy EPSS 0.41% · P35

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-27787

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Segmentaation fault was found in UPX in invert_pt_dynamic() function in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
UPX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UPX是一款可移植、可扩展的可执行压缩程序。 UPX 3.96版本存在安全漏洞，该漏洞源于p_lx_elf.cpp的invert_pt_dynamic()函数中发现了Segmentaation错误，攻击者利用精心制作的输入文件允许无效的内存地址访问，这可能导致拒绝服务。
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
- upx Fixed in v3.96. -

II. Public POCs for CVE-2020-27787

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III. Intelligence Information for CVE-2020-27787

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Patches & Fixes for CVE-2020-27787 (1)

Other References for CVE-2020-27787 (1)

Same Patch Batch · n/a · 2022-08-18 · 107 CVEs total

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CVE-2022-21197 Intel PROSet/Wireless WiFi Software 输入验证错误漏洞
CVE-2021-44470 Intel Connect M Android application 安全漏洞

Showing top 20 of 107 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: upx
Same vendor: n/a
Same weakness: CWE-119

V. Comments for CVE-2020-27787

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