RHEL 6 : MRG (RHSA-2018:2165)

Medium Nessus Plugin ID 111029

Synopsis

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

Description

Updated kernel-rt packages that fix two security issues and add one enhancement are now available for Red Hat Enterprise MRG 2.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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: Buffer over-read in keyring subsystem allows exposing potentially sensitive information to local attacker (CVE-2017-13305)

* Kernel: FPU state information leakage via lazy FPU restore (CVE-2018-3665)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Julian Stecklina (Amazon.de), Thomas Prescher (cyberus-technology.de), and Zdenek Sojka (sysgo.com) for reporting CVE-2018-3665.

Enhancement(s) :

* The kernel-rt packages have been upgraded to version 3.10.0-693.35.1.rt56.623, which provides a number of bug fixes over the previous version. (BZ#1579972)

Users of kernel-rt are advised to upgrade to these updated packages, which add this enhancement.

The system must be rebooted for this update to take effect.

Solution

Update the affected packages.

See Also

http://rhn.redhat.com/errata/RHSA-2018-2165.html

https://www.redhat.com/security/data/cve/CVE-2017-13305.html

https://www.redhat.com/security/data/cve/CVE-2018-3665.html

Plugin Details

Severity: Medium

ID: 111029

File Name: redhat-RHSA-2018-2165.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2018/07/12

Modified: 2018/07/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

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

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-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-firmware, 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-vanilla, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel, cpe:/o:redhat:enterprise_linux:6

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

Patch Publication Date: 2018/07/10

Reference Information

CVE: CVE-2017-13305, CVE-2018-3665

RHSA: 2018:2165