Resource management error in QEMU - CVE-2014-9718
Published: April 21, 2015 / Updated: July 28, 2020
Vulnerability identifier: #VU32424
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-9718
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Affected software
QEMU
qemu (Alpine package)
qemu (Alpine package)
How to mitigate CVE-2014-9718
Install update from vendor's website.
QEMU - update to 2.2.0
qemu (Alpine package) - update to 2.1.3-r0
qemu (Alpine package) - update to 2.1.3-r0