Rapid7 Vulnerability & Exploit Database

Alpine Linux: CVE-2014-9718: qemu malicious PRDT flow from guest to host

Back to Search

Alpine Linux: CVE-2014-9718: qemu malicious PRDT flow from guest to host

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
04/21/2015
Created
07/25/2018
Added
08/30/2017
Modified
09/22/2017

Description

The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality in QEMU 1.0 through 2.1.3 have multiple interpretations of a function's return value, which allows guest OS users to cause a host OS denial of service (memory consumption or infinite loop, and system crash) via a PRDT with zero complete sectors, related to the bmdma_prepare_buf and ahci_dma_prepare_buf functions.

Solution(s)

  • alpine-linux-upgrade-qemu

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;