#VU24172 Use-after-free in Linux kernel - CVE-2019-15917
Published: January 9, 2020
Vulnerability identifier: #VU24172
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-15917
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when hci_uart_register_dev() fails in hci_uart_set_proto() in drivers/bluetooth/hci_ldisc.c. A remote attacker with physical proximity to the system can send specially crafted Bluetoth data and execute arbitrary code.
Remediation
Install updates from vendor's website.
External links
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.5
- https://github.com/torvalds/linux/commit/56897b217a1d0a91c9920cb418d6b3fe922f590a
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html