CVE-2014-9718

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.

CVSS Metrics

• v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.21%• Percentile: 43%

Techniques & Countermeasures

• CWE-399•Resource Management Errors

  Weaknesses in this category are related to improper management of system resources.

Affected Systems

• debian•debian_linux

  8.0

• qemu•qemu

  1.0 | 1.0:rc1 | 1.0:rc2 | 1.0:rc3 | 1.0:rc4 | 1.0.1 | 1.1 | 1.1:rc1 | 1.1:rc2 | 1.1:rc3 | 1.1:rc4 | 1.4.1 | 1.4.2 | 1.5.0 | 1.5.0:rc1 | 1.5.0:rc2 | 1.5.0:rc3 | 1.5.1 | 1.5.2 | 1.5.3 | 1.6.0 | 1.6.0:rc1 | 1.6.0:rc2 | 1.6.0:rc3 | 1.6.1 | 1.6.2 | 1.7.1 | 2.0.0 | 2.0.0:rc0 | 2.0.0:rc1 | 2.0.0:rc2 | 2.0.0:rc3 | 2.0.2 | 2.1.0 | 2.1.0:rc0 | 2.1.0:rc1 | 2.1.0:rc2 | 2.1.0:rc3 | 2.1.0:rc5 | 2.1.1 | 2.1.2 | 2.1.3

References (4)

• http://www.debian.org/security/2015/dsa-3259
• http://openwall.com/lists/oss-security/2015/04/20/7
• http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=3251bdcf1c67427d964517053c3d185b46e618e8
• http://www.securityfocus.com/bid/73316