CVE-2020-15437

2020-11-2300:00:00

ubuntu.com

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

The Linux kernel before version 5.8 is vulnerable to a NULL pointer
dereference in
drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows
local users to cause a denial of service by using the p->serial_in pointer
which uninitialized.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-115.116UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-45.49UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-189.219UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1077.81) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1080.84UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1022.22UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1113.126UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1022.22~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1080.84~16.04.1UNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1093.103~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-115.116	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-45.49	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-189.219	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1077.81) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1080.84	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1022.22	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1113.126	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< 5.4.0-1022.22~18.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-aws-hwe	< 4.15.0-1080.84~16.04.1	UNKNOWN
ubuntu	14.04	noarch	linux-azure	< 4.15.0-1093.103~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN