CVE-2018-7191

CVE Details

Release Date:	2019-05-17
Impact:	None	What is this?

Description

In the tun subsystem in the Linux kernel before 4.13.14, dev_get_valid_name is not called before register_netdevice. This allows local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343.

See more information about CVE-2018-7191 from MITRE CVE dictionary and NIST NVD

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

CVSS v3 metrics

Base Score:	5.5
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-3.8.13-118.36.1.el6uek)	ELSA-2019-4703	2019-07-03
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4703	2019-07-03
Oracle Linux version 6 (kernel-uek)	ELSA-2019-4710	2019-07-10
Oracle Linux version 7 (dtrace-modules-3.8.13-118.36.1.el7uek)	ELSA-2019-4703	2019-07-03
Oracle Linux version 7 (dtrace-modules-3.8.13-118.36.1.el7uek)	ELSA-2019-4706	2019-07-03
Oracle Linux version 7 (kernel)	ELSA-2020-1016	2020-04-06
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4703	2019-07-03
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4706	2019-07-03
Oracle Linux version 7 (kernel-uek)	ELSA-2019-4710	2019-07-10
Oracle VM version 3.4 (kernel-uek)	OVMSA-2019-0035	2019-07-11