CVE-2019-19037

2019-11-2100:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

44.1%

JSON

ext4_empty_dir in fs/ext4/namei.c in the Linux kernel through 5.3.12 allows
a NULL pointer dereference because ext4_read_dirblock(inode,0,DIRENT_HTREE)
can be zero.

Notes

Author	Note
tyhicks	Exploiting this vulnerability requires a crafted filesystem image to be mounted

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-88.88UNKNOWN
ubuntu19.10noarchlinux< 5.3.0-40.32UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1060.62UNKNOWN
ubuntu19.10noarchlinux-aws< 5.3.0-1011.12UNKNOWN
ubuntu18.04noarchlinux-aws-5.0< 5.0.0-1025.28UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1060.62~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure< 5.0.0-1032.34UNKNOWN
ubuntu19.10noarchlinux-azure< 5.3.0-1013.14UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1071.76UNKNOWN
ubuntu18.04noarchlinux-azure-5.3< 5.3.0-1013.14~18.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-88.88	UNKNOWN
ubuntu	19.10	noarch	linux	< 5.3.0-40.32	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1060.62	UNKNOWN
ubuntu	19.10	noarch	linux-aws	< 5.3.0-1011.12	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.0	< 5.0.0-1025.28	UNKNOWN
ubuntu	16.04	noarch	linux-aws-hwe	< 4.15.0-1060.62~16.04.1	UNKNOWN
ubuntu	18.04	noarch	linux-azure	< 5.0.0-1032.34	UNKNOWN
ubuntu	19.10	noarch	linux-azure	< 5.3.0-1013.14	UNKNOWN
ubuntu	16.04	noarch	linux-azure	< 4.15.0-1071.76	UNKNOWN
ubuntu	18.04	noarch	linux-azure-5.3	< 5.3.0-1013.14~18.04.1	UNKNOWN