CVE-2018-1092

CVE Details

Release Date:

2018-04-01

Description

The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.

See more information about CVE-2018-1092 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	Base Metrics:	AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2019-4317	2019-01-04
Oracle Linux version 6 (dtrace-modules-3.8.13-118.29.1.el6uek)	ELSA-2019-4316	2019-01-04
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4315	2019-01-03
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4316	2019-01-04
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4317	2019-01-04
Oracle Linux version 7 (dtrace-modules-3.8.13-118.29.1.el7uek)	ELSA-2019-4316	2019-01-04
Oracle Linux version 7 (kernel)	ELSA-2018-3083	2018-11-05
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4315	2019-01-03
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4316	2019-01-04
Oracle VM version 3.4 (kernel-uek)	OVMSA-2019-0002	2019-02-04

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team