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CVE-2019-14835

Quick assessment

Affected
Linux Kernel Linux 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基金会的开源操作系统Linux所使用的内核。 Linux kernel 2.6.34版本至5.2.x版本（5.3版本已修复）中的vhost功能记录缓冲区描述符的方法存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 7.8 Difficulty: Hard EPSS 0.62% · P48
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I. Basic Information for CVE-2019-14835

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
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 2.6.34版本至5.2.x版本（5.3版本已修复）中的vhost功能记录缓冲区描述符的方法存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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
Linux Kernel Linux kernel from version 2.6.34 to 5.2.x -

II. Public POCs for CVE-2019-14835

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III. Intelligence Information for CVE-2019-14835

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Vendor Advisories for CVE-2019-14835 (23)

Exploits & Public PoCs for CVE-2019-14835 (2)

Mailing List Discussions for CVE-2019-14835 (13)

Other References for CVE-2019-14835 (1)

IV. Related Vulnerabilities

Same product: Linux kernel
Same vendor: Linux Kernel
Same weakness: CWE-120

V. Comments for CVE-2019-14835

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