CentOS 7 : kernel (CESA-2017:3315)

Low Nessus Plugin ID 105056

Synopsis

The remote CentOS host is missing one or more security updates.

Description

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

These updated kernel packages include several security issues and numerous bug fixes, some of which you can see below. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/ articles/3253081

Security Fix(es) :

* It was found that the timer functionality in the Linux kernel ALSA subsystem is prone to a race condition between read and ioctl system call handlers, resulting in an uninitialized memory disclosure to user space. A local user could use this flaw to read information belonging to other users. (CVE-2017-1000380, Moderate)

Red Hat would like to thank Alexander Potapenko (Google) for reporting this issue.

Solution

Update the affected kernel packages.

See Also

http://www.nessus.org/u?8569af15

Plugin Details

Severity: Low

ID: 105056

File Name: centos_RHSA-2017-3315.nasl

Version: $Revision: 3.2 $

Type: local

Agent: unix

Published: 2017/12/07

Modified: 2018/01/25

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSSv2

Base Score: 2.1

Temporal Score: 1.7

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

CVSSv3

Base Score: 5.5

Temporal Score: 5.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: p-cpe:/a:centos:centos:kernel, p-cpe:/a:centos:centos:kernel-abi-whitelists, p-cpe:/a:centos:centos:kernel-debug, p-cpe:/a:centos:centos:kernel-debug-devel, p-cpe:/a:centos:centos:kernel-devel, p-cpe:/a:centos:centos:kernel-doc, p-cpe:/a:centos:centos:kernel-headers, p-cpe:/a:centos:centos:kernel-tools, p-cpe:/a:centos:centos:kernel-tools-libs, p-cpe:/a:centos:centos:kernel-tools-libs-devel, p-cpe:/a:centos:centos:perf, p-cpe:/a:centos:centos:python-perf, cpe:/o:centos:centos:7

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/12/06

Reference Information

CVE: CVE-2017-1000380

OSVDB: 159145

RHSA: 2017:3315