CVE-2017-5669

CVE Details

Release Date:	2017-01-20
Impact:	Low	What is this?

Description

The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12does not restrict the address calculated by a certain rounding operation, which allows local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context.

See more information about CVE-2017-5669 from MITRE CVE dictionary and NIST NVD

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

CVSS v2 metrics

Base Score:	4.6
Vector String:	AV:L/AC:L/Au:N/C:P/I:P/A:P
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3567	2017-05-16
Oracle Linux version 6 (dtrace-modules-3.8.13-118.18.2.el6uek)	ELSA-2017-3566	2017-05-16
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3566	2017-05-16
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3567	2017-05-16
Oracle Linux version 7 (dtrace-modules-3.8.13-118.18.2.el7uek)	ELSA-2017-3566	2017-05-16
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3566	2017-05-16
Oracle VM version 3.2 (kernel-uek)	OVMSA-2017-0106	2017-05-16
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0105	2017-05-16