CVE-2019-14835 vulnerability in Canonical and Other Products
Published on September 17, 2019

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.

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Weakness Type

What is a Classic Buffer Overflow Vulnerability?

The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. A buffer overflow condition exists when a program attempts to put more data in a buffer than it can hold, or when a program attempts to put data in a memory area outside of the boundaries of a buffer. The simplest type of error, and the most common cause of buffer overflows, is the "classic" case in which the program copies the buffer without restricting how much is copied. Other variants exist, but the existence of a classic overflow strongly suggests that the programmer is not considering even the most basic of security protections.

CVE-2019-14835 has been classified to as a Classic Buffer Overflow vulnerability or weakness.

Products Associated with CVE-2019-14835

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2019-14835 are published in these products:

Canonical Ubuntu Linux

Linux Kernel

Red Hat Enterprise Linux (RHEL)

Red Hat Virtualization

Debian Linux

Fedora Project Fedora

OpenSuse Leap

NetApp Steelstore Cloud Integrated Storage

NetApp Data Availability Services

NetApp Hci Management Node

NetApp Service Processor

NetApp Solidfire

Red Hat Openshift Container Platform

Red Hat Enterprise Linux Desktop

Red Hat Enterprise Linux Eus

Red Hat Enterprise Linux For Real Time

Red Hat Enterprise Linux Server

Red Hat Enterprise Linux Server Aus

Red Hat Enterprise Linux Workstation

Red Hat Enterprise Linux Server Tus

Huawei Imanager Neteco

Huawei Imanager Neteco 6000

Huawei Manageone

Affected Versions

Linux kernel Version from version 2.6.34 to 5.2.x is affected by CVE-2019-14835

Exploit Probability

EPSS

0.08%

Percentile

23.71%