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CVE-2019-5603

Quick assessment

Affected
FreeBSD FreeBSD
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.

FreeBSD是FreeBSD基金会的一套类Unix操作系统。mqueuefs是使用在其中的一个POSIX消息队列文件系统支持模块。 FreeBSD mqueuefs中存在安全漏洞。本地攻击者可利用该漏洞获取其他用户进程所打开文件、目录、网络编程接口等的访问权限。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.62% · P48

Possible ATT&CK Techniques 1 AI

T1598.002 · Spearphishing Attachment
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I. Basic Information for CVE-2019-5603

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In FreeBSD 12.0-STABLE before r350261, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350263, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, system calls operating on file descriptors as part of mqueuefs did not properly release the reference allowing a malicious user to overflow the counter allowing access to files, directories, and sockets opened by processes owned by other users.
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 mqueuefs 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。mqueuefs是使用在其中的一个POSIX消息队列文件系统支持模块。 FreeBSD mqueuefs中存在安全漏洞。本地攻击者可利用该漏洞获取其他用户进程所打开文件、目录、网络编程接口等的访问权限。
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 FreeBSD before 12.0-RELEASE-p8 -

II. Public POCs for CVE-2019-5603

# POC Description Source Link Shenlong Link
1 Full LPE Exploit for CVE-2019-5603 / FreeBSD-SA-19:15.mqueuefs / FreeBSD-SA-19:24.mqueuefs https://github.com/raymontag/CVE-2019-5603 POC Details
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III. Intelligence Information for CVE-2019-5603

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Vendor Advisories for CVE-2019-5603 (1)

Exploits & Public PoCs for CVE-2019-5603 (2)

Other References for CVE-2019-5603 (2)

Same Patch Batch · FreeBSD · 2019-07-26 · 5 CVEs total

CVE-2019-5605 FreeBSD freebsd32 信息泄露漏洞
CVE-2019-5604 FreeBSD 缓冲区错误漏洞
CVE-2019-5607 FreeBSD 权限许可和访问控制问题漏洞
CVE-2019-5606 FreeBSD pts 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: FreeBSD
Same vendor: FreeBSD

V. Comments for CVE-2019-5603

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