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CVE-2021-38185

Quick assessment

Affected
n/a n/a
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.

cpio是一款用于类UNIX系统的文件备份程序。 cpio 中存在安全漏洞。允许攻击者通过精心设计的模式文件执行任意代码，因为 dstring.c ds_fgetstr 整数溢出会触发越界堆写入。

AI Predicted 8.8 Difficulty: Easy EPSS 4.13% · P90

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-38185

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
GNU cpio through 2.13 allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
cpio 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cpio是一款用于类UNIX系统的文件备份程序。 cpio 中存在安全漏洞。允许攻击者通过精心设计的模式文件执行任意代码，因为 dstring.c ds_fgetstr 整数溢出会触发越界堆写入。
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
- n/a n/a -

II. Public POCs for CVE-2021-38185

# POC Description Source Link Shenlong Link
1 ACE poc exploit for glibc cpio 2.13 through mmap chunk metadata curruption (CVE-2021-38185) https://github.com/fangqyi/cpiopwn POC Details
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III. Intelligence Information for CVE-2021-38185

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Mailing List Discussions for CVE-2021-38185 (1)

Other References for CVE-2021-38185 (2)

Same Patch Batch · n/a · 2021-08-07 · 12 CVEs total

CVE-2021-38173 btrbk 命令注入漏洞
CVE-2021-38168 Roxy-WI SQL注入漏洞
CVE-2021-38169 Roxy-WI 命令注入漏洞
CVE-2021-38167 Roxy-WI SQL注入漏洞
CVE-2021-38166 Linux kernel 输入验证错误漏洞
CVE-2021-38165 Lynx 安全漏洞
CVE-2021-29923 Google Golang 安全漏洞
CVE-2021-38159 Progress Software MOVEit Transfer SQL注入漏洞
CVE-2021-38160 Linux kernel 安全漏洞
CVE-2021-38148 Obsidian 安全漏洞
CVE-2021-29922 Rust 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-38185

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