CVE-2017-7482

CVE Details

Release Date:	2018-07-30
Impact:	Moderate	What is this?

Description

In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

See more information about CVE-2017-7482 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:	7.8
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2018-4041	2018-02-26
Oracle Linux version 6 (dtrace-modules-3.8.13-118.20.3.el6uek)	ELSA-2018-4040	2018-02-26
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3635	2017-11-02
Oracle Linux version 6 (kernel-uek)	ELSA-2018-4040	2018-02-26
Oracle Linux version 6 (kernel-uek)	ELSA-2018-4041	2018-02-26
Oracle Linux version 7 (dtrace-modules-3.8.13-118.20.3.el7uek)	ELSA-2018-4040	2018-02-26
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3635	2017-11-02
Oracle Linux version 7 (kernel-uek)	ELSA-2018-4040	2018-02-26
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0167	2017-11-03