Buffer overflow in Linux kernel - CVE-2017-8063
Published: April 23, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU39144
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-2017-8063
CWE-ID: CWE-119
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 authenticated user to execute arbitrary code.
drivers/media/usb/dvb-usb/cxusb.c in the Linux kernel 4.9.x and 4.10.x before 4.10.12 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.
How to mitigate CVE-2017-8063
Install update from vendor's website.
Sources
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.12
- http://www.openwall.com/lists/oss-security/2017/04/16/4
- http://www.securityfocus.com/bid/97974
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f190e3aec212fc8c61e202c51400afa7384d4bc
- https://github.com/torvalds/linux/commit/3f190e3aec212fc8c61e202c51400afa7384d4bc