Improper locking in Linux kernel - CVE-2019-14763
Published: September 3, 2019
Vulnerability identifier: #VU20807
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-14763
CWE-ID: CWE-667
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 perform a denial of service attack (DoS) on the target system.
The vulnerability exists due to double-locking error in the DesignWare USB3 DRD Controller device in "drivers/usb/dwc3/gadget.c". An authenticated local user with physical access to the system can exploit this vulnerability to cause a deadlock with "f_hid", resulting in a denial of service condition.
How to mitigate CVE-2019-14763
Install updates from vendor's website.
Sources
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=072684e8c58d17e853f8e8b9f6d9ce2e58d2b036
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c91815b596245fd7da349ecc43c8def670d2269e
- https://github.com/torvalds/linux/commit/072684e8c58d17e853f8e8b9f6d9ce2e58d2b036
- https://github.com/torvalds/linux/commit/c91815b596245fd7da349ecc43c8def670d2269e