CVE-2014-9718

MEDIUM

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.

References

http://git.qemu.org/?p=qemu.git;a=commit;h=3251bdcf1c67427d964517053c3d185b46e618e8

http://openwall.com/lists/oss-security/2015/04/20/7

http://www.debian.org/security/2015/dsa-3259

http://www.securityfocus.com/bid/73316

Details

Source: MITRE

Published: 2015-04-21

Updated: 2016-06-23

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM