Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20190729)

critical Nessus Plugin ID 127728

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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-ma packages provide the user-space component for running virtual machines that use KVM on the IBM z Systems, IBM Power, and 64-bit ARM architectures.

Security Fix(es) :

 - QEMU: device_tree: heap buffer overflow while loading device tree blob (CVE-2018-20815)

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

Bug Fix(es) :

 - As newer machine remove csske feature, detection of the processor fail and machine used old version as fallback.
 This update make feature conditional so detection of newer cpu works properly. (BZ#1720262)

Solution

Update the affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=1720262

http://www.nessus.org/u?3ef5f146

Plugin Details

Severity: Critical

ID: 127728

File Name: sl_20190729_qemu_kvm_on_SL7_x.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/12/2019

Updated: 2/24/2020

Supported Sensors: Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:qemu-img, p-cpe:/a:fermilab:scientific_linux:qemu-kvm, p-cpe:/a:fermilab:scientific_linux:qemu-kvm-common, p-cpe:/a:fermilab:scientific_linux:qemu-kvm-debuginfo, p-cpe:/a:fermilab:scientific_linux:qemu-kvm-tools, x-cpe:/o:fermilab:scientific_linux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/29/2019

Vulnerability Publication Date: 3/21/2019

Reference Information

CVE: CVE-2018-20815, CVE-2019-6778