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CVE-2017-6951

Quick assessment

Affected

n/a n/a

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.

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 3.14.79及之前的版本中的security/keys/keyring.c文件的‘keyring_search_aux’函数存在安全漏洞。本地攻击者可借助request_key系统调用利用该漏洞造成拒绝服务（空指针逆向引用和OOPS）。

AI Predicted 5.5 Difficulty: Easy EPSS 0.39% · P32 Updated Feb 21, 2026

Possible ATT&CK Techniques 2 AI

T1499 · Endpoint Denial of Service T1059 · Command and Scripting Interpreter

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I. Basic Information for CVE-2017-6951

Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

The keyring_search_aux function in security/keys/keyring.c in the Linux kernel through 3.14.79 allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the "dead" type.

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

Linux kernel 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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-2017-6951

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2017-6951

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Vendor Advisories for CVE-2017-6951 (4)

http://www.securityfocus.com/bid/96943 vdb-entry x_refsource_BID
https://access.redhat.com/errata/RHSA-2017:1842 vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2077 vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2669 vendor-advisory x_refsource_REDHAT

Other References for CVE-2017-6951 (3)

http://www.spinics.net/lists/keyrings/msg01845.html x_refsource_MISC
http://www.spinics.net/lists/keyrings/msg01849.html x_refsource_MISC
http://www.spinics.net/lists/keyrings/msg01846.html x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2017-6951

Same Patch Batch · n/a · 2017-03-16 · 16 CVEs total

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CVE-2016-10246		Artifex Software MuPDF 缓冲区错误漏洞
CVE-2016-10247		Artifex Software MuPDF 缓冲区错误漏洞
CVE-2017-6510		EFS Software Easy File Sharing FTP Server 路径遍历漏洞
CVE-2015-8981		PoDoFo 缓冲区错误漏洞
CVE-2016-0770		WordPress Connections Business Directory插件跨站脚本漏洞
CVE-2016-10187		Calibre 信息泄露漏洞
CVE-2017-5505		JasPer 缓冲区错误漏洞
CVE-2017-5617		SVG Salamander 安全漏洞
CVE-2017-5667		QEMU 安全漏洞
CVE-2017-5856		QEMU 安全漏洞
CVE-2017-5857		QEMU 安全漏洞
CVE-2017-6949		CHICKEN Scheme 安全漏洞
CVE-2017-6952		Capstone 数字错误漏洞

IV. Related Vulnerabilities

Same product: n/a

Same vendor: n/a