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CentOS 7 : qemu-kvm-ma (RHSA-2020:3907)

medium Nessus Plugin ID 208579

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Synopsis

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

Description

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:3907 advisory.

 - qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread. (CVE-2018-15746)

 - QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC disconnect operation because libz is misused, resulting in a situation where memory allocated in deflateInit2 is not freed in deflateEnd. (CVE-2019-20382)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2020:3907

Plugin Details

Severity: Medium

ID: 208579

File Name: centos_RHSA-2020-3907.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/9/2024

Updated: 10/9/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 2.7

Temporal Score: 2

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

CVSS Score Source: CVE-2019-20382

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2018-15746

Vulnerability Information

CPE: cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:qemu-img-ma, p-cpe:/a:centos:centos:qemu-kvm-tools-ma, p-cpe:/a:centos:centos:qemu-kvm-ma, p-cpe:/a:centos:centos:qemu-kvm-common-ma

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/29/2020

Vulnerability Publication Date: 8/13/2018

Reference Information

CVE: CVE-2018-15746, CVE-2019-20382

RHSA: 2020:3907