Amazon Linux AMI : qemu-kvm (ALAS-2018-1073)

high Nessus Plugin ID 117345

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. A user or process could use this flaw to potentially achieve arbitrary code execution on a host.(CVE-2018-7550)

A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or potentially leverage it to execute arbitrary code on the host with privileges of the QEMU process.(CVE-2018-11806)

Solution

Run 'yum update qemu-kvm' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2018-1073.html

Plugin Details

Severity: High

ID: 117345

File Name: ala_ALAS-2018-1073.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/7/2018

Updated: 9/7/2018

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

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

CVSS v3

Risk Factor: High

Base Score: 8.8

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:qemu-img, p-cpe:/a:amazon:linux:qemu-kvm, p-cpe:/a:amazon:linux:qemu-kvm-common, p-cpe:/a:amazon:linux:qemu-kvm-debuginfo, p-cpe:/a:amazon:linux:qemu-kvm-tools, cpe:/o:amazon:linux

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

Patch Publication Date: 9/5/2018

Reference Information

CVE: CVE-2018-11806, CVE-2018-7550

ALAS: 2018-1073