Permissions, privileges, and access controls in Linux kernel - CVE-2014-9888
Published: August 6, 2016 / Updated: November 28, 2016
Vulnerability identifier: #VU92455
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2014-9888
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to permissions, privileges, and access controls error within the __dma_alloc() and arm_dma_alloc() functions in arch/arm/mm/dma-mapping.c. A local user can execute arbitrary code.
How to mitigate CVE-2014-9888
Install update from vendor's repository.
Sources
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ea1ec713f04bdfac343c9702b21cd3a7c711826
- http://source.android.com/security/bulletin/2016-08-01.html
- http://www.securityfocus.com/bid/92219
- https://github.com/torvalds/linux/commit/0ea1ec713f04bdfac343c9702b21cd3a7c711826
- https://source.codeaurora.org/quic/la/kernel/msm/commit/?id=f044936caab337a4384fbfe64a4cbae33c7e22a1