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CVE-2019-3900

Quick assessment

Affected
Red Hat Kernel
Exploitation
High exploitation probability; assess promptly
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基金会的开源操作系统Linux所使用的内核。 Linux Kernel 5.1-rc6版本及之前版本存在资源管理错误漏洞，该漏洞源于在vhost_net 内核模块中发现了无限循环问题。攻击者可用该漏造成vhost_net内核线程停止，导致拒绝服务。

AI Predicted 7.8 Difficulty: Easy EPSS 4.35% · P91

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-3900

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux Kernel 5.1-rc6版本及之前版本存在资源管理错误漏洞，该漏洞源于在vhost_net 内核模块中发现了无限循环问题。攻击者可用该漏造成vhost_net内核线程停止，导致拒绝服务。
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
Red Hat Kernel affects up to and including v5.1-rc6 -

II. Public POCs for CVE-2019-3900

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III. Intelligence Information for CVE-2019-3900

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Vendor Advisories for CVE-2019-3900 (18)

Exploits & Public PoCs for CVE-2019-3900 (1)

Mailing List Discussions for CVE-2019-3900 (7)

Other References for CVE-2019-3900 (1)

IV. Related Vulnerabilities

Same product: Kernel
Same vendor: Red Hat
Same weakness: CWE-835

V. Comments for CVE-2019-3900

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