Detections
Analytics

CVE-2019-12819

medium

Description

An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.

References

https://usn.ubuntu.com/4118-1/

https://usn.ubuntu.com/4094-1/

https://github.com/torvalds/linux/commit/6ff7b060535e87c2ae14dd8548512abfdda528fb

http://www.securityfocus.com/bid/108768

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html

https://security.netapp.com/advisory/ntap-20190710-0002/

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ff7b060535e87c2ae14dd8548512abfdda528fb

https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-4400

http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html

Details

Source: Mitre, NVD

Published: 2019-06-14

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00076