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CVE-2018-6559

Quick assessment

Affected
Canonical Ltd. Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10
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.

Ubuntu是英国科能（Canonical）公司和Ubuntu基金会共同开发的一套以桌面应用为主的GNU/Linux操作系统。Linux Kernel是其中的一个Linux系统内核。 Ubuntu 18.04 LTS版本和18.10版本中使用的Linux Kernel的overlayfs实现存在安全漏洞。本地攻击者可利用该漏洞获取文件名称。

AI Predicted 4.4 Difficulty: Moderate EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1082 · System Information Discovery
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I. Basic Information for CVE-2018-6559

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Ubuntu Linux Kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ubuntu是英国科能（Canonical）公司和Ubuntu基金会共同开发的一套以桌面应用为主的GNU/Linux操作系统。Linux Kernel是其中的一个Linux系统内核。 Ubuntu 18.04 LTS版本和18.10版本中使用的Linux Kernel的overlayfs实现存在安全漏洞。本地攻击者可利用该漏洞获取文件名称。
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
Canonical Ltd. Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10 4.15.0-38.41 -

II. Public POCs for CVE-2018-6559

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III. Intelligence Information for CVE-2018-6559

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Vendor Advisories for CVE-2018-6559 (4)

Mailing List Discussions for CVE-2018-6559 (1)

Other References for CVE-2018-6559 (2)

IV. Related Vulnerabilities

Same vendor: Canonical Ltd.
Same weakness: CWE-200

V. Comments for CVE-2018-6559

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