CVE-2017-1000363

CVE Details

Release Date:	2017-05-22
Impact:	Moderate	What is this?

Description

Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing boundscheck, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.

See more information about CVE-2017-1000363 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:	7.2
Vector String:	AV:L/AC:L/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2017-3637	2017-11-02
Oracle Linux version 6 (dtrace-modules-3.8.13-118.19.12.el6uek)	ELSA-2017-3636	2017-11-02
Oracle Linux version 6 (dtrace-modules-4.1.12-94.5.7.el6uek)	ELSA-2017-3595	2017-07-27
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3595	2017-07-27
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3636	2017-11-02
Oracle Linux version 6 (kernel-uek)	ELSA-2017-3637	2017-11-02
Oracle Linux version 7 (dtrace-modules-3.8.13-118.19.12.el7uek)	ELSA-2017-3636	2017-11-02
Oracle Linux version 7 (dtrace-modules-4.1.12-94.5.7.el7uek)	ELSA-2017-3595	2017-07-27
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3595	2017-07-27
Oracle Linux version 7 (kernel-uek)	ELSA-2017-3636	2017-11-02
Oracle VM version 3.3 (kernel-uek)	OVMSA-2017-0168	2017-11-03
Oracle VM version 3.4 (kernel-uek)	OVMSA-2017-0126	2017-07-28