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CVE-2017-7518

Quick assessment

Affected
[UNKNOWN] Kernel:
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。 Linux kernel 4.12之前版本中KVM模块处理trap flag(TF) bit的方式存在提权漏洞。本地攻击者可利用该漏洞提升权限。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.67% · P50
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I. Basic Information for CVE-2017-7518

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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。 Linux kernel 4.12之前版本中KVM模块处理trap flag(TF) bit的方式存在提权漏洞。本地攻击者可利用该漏洞提升权限。
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
[UNKNOWN] Kernel: 4.12 -

II. Public POCs for CVE-2017-7518

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III. Intelligence Information for CVE-2017-7518

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Vendor Advisories for CVE-2017-7518 (9)

Mailing List Discussions for CVE-2017-7518 (1)

Other References for CVE-2017-7518 (1)

Same Patch Batch · [UNKNOWN] · 2018-07-30 · 6 CVEs total

CVE-2018-10847 Prosody 安全漏洞
CVE-2018-10898 openstack-tripleo-heat-templates 安全漏洞
CVE-2018-10883 Linux kernel 缓冲区错误漏洞
CVE-2018-10903 python-cryptography 安全漏洞
CVE-2017-7482 Linux kernel 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: Kernel:
Same vendor: [UNKNOWN]
Same weakness: CWE-250

V. Comments for CVE-2017-7518

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