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CVE-2021-43312

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 存在安全漏洞，该漏洞源于 p_lx_elf.cpp:5239 的函数 PackLinuxElf64::invert_pt_dynamic 导致 “bucket” 变量指向一个不可访问的地址。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-43312

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf64::invert_pt_dynamic at p_lx_elf.cpp:5239.
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 缓冲区错误漏洞
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 存在安全漏洞，该漏洞源于 p_lx_elf.cpp:5239 的函数 PackLinuxElf64::invert_pt_dynamic 导致 “bucket” 变量指向一个不可访问的地址。
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 upx before 4.0.0-git-c6b9e3c62d15 -

II. Public POCs for CVE-2021-43312

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III. Intelligence Information for CVE-2021-43312

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Other References for CVE-2021-43312 (1)

Same Patch Batch · n/a · 2023-03-24 · 163 CVEs total

CVE-2023-28818 5.3 MEDIUM Veritas Technologies Veritas NetBackup 数据伪造问题漏洞
CVE-2023-28152 5.3 MEDIUM Independentsoft JWord 代码问题漏洞
CVE-2023-28151 5.3 MEDIUM Independentsoft JSpreadsheet 代码问题漏洞
CVE-2023-28150 5.3 MEDIUM Independentsoft JODF 代码问题漏洞
CVE-2023-21028 Google Pixel 缓冲区错误漏洞
CVE-2023-21047 Google Pixel 缓冲区错误漏洞
CVE-2023-21029 Google Pixel 安全漏洞
CVE-2023-21030 Google Pixel 资源管理错误漏洞
CVE-2023-21031 Google Pixel 缓冲区错误漏洞
CVE-2023-21032 Google Pixel 缓冲区错误漏洞
CVE-2023-21033 Google Pixel 资源管理错误漏洞
CVE-2023-21034 Google Pixel 安全漏洞
CVE-2023-21035 Google Pixel 安全漏洞
CVE-2023-21036 Google Pixel 安全漏洞
CVE-2023-21043 Google Pixel 资源管理错误漏洞
CVE-2023-21008 Google Pixel 缓冲区错误漏洞
CVE-2023-21046 Google Pixel 缓冲区错误漏洞
CVE-2023-21045 Google Pixel 资源管理错误漏洞
CVE-2023-21044 Google Pixel 缓冲区错误漏洞
CVE-2023-21041 Google Pixel 缓冲区错误漏洞

Showing top 20 of 163 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-43312

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