RHEL 7 : kernel-rt (RHSA-2018:0412)

Medium Nessus Plugin ID 107189

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for kernel-rt 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es) :

* Kernel: KVM: MMU potential stack buffer overrun during page walks (CVE-2017-12188, Important)

* Kernel: KVM: debug exception via syscall emulation (CVE-2017-7518, Moderate)

Bug Fix(es) :

* The kernel-rt packages have been upgraded to the 3.10.0-693.21.1 source tree, which provides a number of bug fixes over the previous version. (BZ# 1537671)

Solution

Update the affected packages.

See Also

http://rhn.redhat.com/errata/RHSA-2018-0412.html

https://www.redhat.com/security/data/cve/CVE-2017-7518.html

https://www.redhat.com/security/data/cve/CVE-2017-12188.html

https://www.redhat.com/security/data/cve/CVE-2017-18270.html

Plugin Details

Severity: Medium

ID: 107189

File Name: redhat-RHSA-2018-0412.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/03/07

Modified: 2018/09/07

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.9

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

CVSSv3

Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm-debuginfo, cpe:/o:redhat:enterprise_linux:7

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

Patch Publication Date: 2018/03/06

Reference Information

CVE: CVE-2017-12188, CVE-2017-18270, CVE-2017-7518

RHSA: 2018:0412