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CVE-2018-6920

Quick assessment

Affected
FreeBSD FreeBSD
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.

FreeBSD是由Core Team团队负责的FreeBSD项目中的一套类Unix自由操作系统，是经过BSD、386BSD和4.4BSD发展而来的类Unix的一个重要分支。 FreeBSD中存在安全漏洞，该漏洞源于程序没有充分的校验复制到用户空间（Linux子系统和Atheros无线驱动程序）的内存。本地攻击者可利用该漏洞访问部分特权内核数据。以下版本受到影响：FreeBSD 11.1-STABLE(r332303)之前版本，11.1-RELEASE-p10之前版本，10.4-STABLE(r332321

AI Predicted 5.5 Difficulty: Moderate EPSS 0.32% · P25
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I. Basic Information for CVE-2018-6920

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In FreeBSD before 11.1-STABLE(r332303), 11.1-RELEASE-p10, 10.4-STABLE(r332321), and 10.4-RELEASE-p9, due to insufficient initialization of memory copied to userland in the Linux subsystem and Atheros wireless driver, small amounts of kernel memory may be disclosed to userland processes. Unprivileged authenticated local users may be able to access small amounts of privileged kernel 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
FreeBSD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是由Core Team团队负责的FreeBSD项目中的一套类Unix自由操作系统，是经过BSD、386BSD和4.4BSD发展而来的类Unix的一个重要分支。 FreeBSD中存在安全漏洞，该漏洞源于程序没有充分的校验复制到用户空间（Linux子系统和Atheros无线驱动程序）的内存。本地攻击者可利用该漏洞访问部分特权内核数据。以下版本受到影响：FreeBSD 11.1-STABLE(r332303)之前版本，11.1-RELEASE-p10之前版本，10.4-STABLE(r332321
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
FreeBSD FreeBSD All supported versions of FreeBSD. -

II. Public POCs for CVE-2018-6920

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III. Intelligence Information for CVE-2018-6920

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Vendor Advisories for CVE-2018-6920 (1)

Other References for CVE-2018-6920 (1)

IV. Related Vulnerabilities

Same product: FreeBSD
Same vendor: FreeBSD

V. Comments for CVE-2018-6920

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