CVE-2016-9604

CVE Details

Release Date:	2018-07-11
Impact:	None	What is this?

Description

It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.

See more information about CVE-2016-9604 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:	4.4
Vector String:	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	High
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	High
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3607	2017-08-18
Oracle Linux version 6 (dtrace-modules-3.8.13-118.19.4.el6uek)	ELSA-2017-3606	2017-08-18
Oracle Linux version 6 (dtrace-modules-4.1.12-94.5.9.el6uek)	ELSA-2017-3605	2017-08-17
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3605	2017-08-17
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3606	2017-08-18
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3607	2017-08-18
Oracle Linux version 7 (dtrace-modules-3.8.13-118.19.4.el7uek)	ELSA-2017-3606	2017-08-18
Oracle Linux version 7 (dtrace-modules-4.1.12-94.5.9.el7uek)	ELSA-2017-3605	2017-08-17
Oracle Linux version 7 (kernel)	ELSA-2017-1842	2017-08-07
Oracle Linux version 7 (kernel)	ELSA-2017-1842-1	2017-08-15
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3605	2017-08-17
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3606	2017-08-18
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0144	2017-08-18
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0143	2017-08-17