CVE-2019-12819

2019-06-1300:00:00

ubuntu.com

linux

kernel

denial of service

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

32.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-58.64UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-146.172UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1047.49UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1081.91UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1047.49~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 5.0.0-1014.14~18.04.1UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1055.60UNKNOWN
ubuntu18.04noarchlinux-azure-edge< 5.0.0-1014.14~18.04.1UNKNOWN
ubuntu16.04noarchlinux-azure-edge< 4.15.0-1055.60UNKNOWN
ubuntu18.04noarchlinux-gcp< 4.15.0-1040.42UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-58.64	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-146.172	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1047.49	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1081.91	UNKNOWN
ubuntu	16.04	noarch	linux-aws-hwe	< 4.15.0-1047.49~16.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-azure	< 5.0.0-1014.14~18.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-azure	< 4.15.0-1055.60	UNKNOWN
ubuntu	18.04	noarch	linux-azure-edge	< 5.0.0-1014.14~18.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-azure-edge	< 4.15.0-1055.60	UNKNOWN
ubuntu	18.04	noarch	linux-gcp	< 4.15.0-1040.42	UNKNOWN