RHEL 7 : Virtualization Manager (RHSA-2019:1046) (Spectre)

Medium Nessus Plugin ID 124839

Synopsis

The remote Red Hat host is missing a security update.

Description

An update for rhvm-setup-plugins is now available for Red Hat Virtualization Engine 4.3.

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 rhvm-setup-plugins package adds functionality exclusive only to Red Hat Virtualization Manager, and is not available for the upstream ovirt-engine. It includes the configuration of the Red Hat Support plugin, copying downstream-only artifacts to the ISO domain, and links to the knowledgebase and other support material.

Security Fix(es) :

* An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5754 relies on the fact that, on impacted microprocessors, during speculative execution of instruction permission faults, exception generation triggered by a faulting access is suppressed until the retirement of the whole instruction block. In a combination with the fact that memory accesses may populate the cache even when the block is being dropped and never committed (executed), an unprivileged local attacker could use this flaw to read privileged (kernel space) memory by conducting targeted cache side-channel attacks. Note: CVE-2017-5754 affects Intel x86-64 microprocessors. AMD x86-64 microprocessors are not affected by this issue. (CVE-2017-5754)

Bug Fix(es) :

* [CVE-2017-5754] Variant3: POWER {qemu-kvm-rhev} Add machine type variants (BZ#1559948)

* add POWER 9 to the 4.2 cluster level (BZ#1574494)

Solution

Update the affected rhvm-setup-plugins package.

See Also

https://access.redhat.com/errata/RHSA-2019:1046

https://access.redhat.com/security/cve/cve-2018-3639

Plugin Details

Severity: Medium

ID: 124839

File Name: redhat-RHSA-2019-1046.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2019/05/13

Updated: 2019/09/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.9

Temporal Score: 3.8

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 5.5

Temporal Score: 5

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rhvm-setup-plugins, cpe:/o:redhat:enterprise_linux:7

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/05/08

Vulnerability Publication Date: 2018/05/22

Reference Information

CVE: CVE-2018-3639

RHSA: 2019:1046