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CVE-2020-1752

Quick assessment

Affected
GNU Libc glibc
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.

GNU C Library（glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.14版本中的glob存在资源管理错误漏洞。本地攻击者可通过创建特制路径利用该漏洞执行任意代码。

CVSS 7.0 · High EPSS 0.55% · P45

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
GNU Libc glibc Affected: versions 2.14 and later affected
Fixed: version 2.32 affected
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I. Basic Information for CVE-2020-1752

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
GNU C Library 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU C Library（glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.14版本中的glob存在资源管理错误漏洞。本地攻击者可通过创建特制路径利用该漏洞执行任意代码。
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
GNU Libc glibc Affected: versions 2.14 and later -

II. Public POCs for CVE-2020-1752

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III. Intelligence Information for CVE-2020-1752

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Vendor Advisories for CVE-2020-1752 (4)

Mailing List Discussions for CVE-2020-1752 (3)

Other References for CVE-2020-1752 (1)

IV. Related Vulnerabilities

Same product: glibc
Same vendor: GNU Libc
Same weakness: CWE-416

V. Comments for CVE-2020-1752

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