CVE-2020-8992

2020-02-1400:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/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

13.3%

JSON

ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel
through 5.5.3 allows attackers to cause a denial of service (soft lockup)
via a crafted journal size.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-96.97UNKNOWN
ubuntu19.10noarchlinux< 5.3.0-51.44UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-185.215UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1065.69UNKNOWN
ubuntu19.10noarchlinux-aws< 5.3.0-1017.18UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1074.78) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1110.121UNKNOWN
ubuntu18.04noarchlinux-aws-5.3< 5.3.0-1017.18~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1065.69~16.04.1UNKNOWN
ubuntu19.10noarchlinux-azure< 5.3.0-1020.21UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-96.97	UNKNOWN
ubuntu	19.10	noarch	linux	< 5.3.0-51.44	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-185.215	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1065.69	UNKNOWN
ubuntu	19.10	noarch	linux-aws	< 5.3.0-1017.18	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1074.78) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	linux-aws	< 4.4.0-1110.121	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.3	< 5.3.0-1017.18~18.04.1	UNKNOWN
ubuntu	16.04	noarch	linux-aws-hwe	< 4.15.0-1065.69~16.04.1	UNKNOWN
ubuntu	19.10	noarch	linux-azure	< 5.3.0-1020.21	UNKNOWN