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CentOS 7 : avahi (RHSA-2020:1176)

critical Nessus Plugin ID 135352

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Synopsis

The remote CentOS Linux host is missing a security update.

Description

The remote CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1176 advisory.

 - avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service (traffic amplification) and may cause information leakage by obtaining potentially sensitive information from the responding device via port-5353 UDP packets. NOTE: this may overlap CVE-2015-2809. (CVE-2017-6519)

Note that Nessus has not tested for this issue 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-2020:1176

Plugin Details

Severity: Critical

ID: 135352

File Name: centos_RHSA-2020-1176.nasl

Version: 1.5

Type: local

Agent: unix

Published: 4/10/2020

Updated: 10/9/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2017-6519

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:avahi-libs, p-cpe:/a:centos:centos:avahi-ui, p-cpe:/a:centos:centos:avahi-devel, p-cpe:/a:centos:centos:avahi-ui-gtk3, p-cpe:/a:centos:centos:avahi-qt4, p-cpe:/a:centos:centos:avahi-dnsconfd, p-cpe:/a:centos:centos:avahi-qt3, p-cpe:/a:centos:centos:avahi-glib, p-cpe:/a:centos:centos:avahi-gobject-devel, p-cpe:/a:centos:centos:avahi-ui-tools, p-cpe:/a:centos:centos:avahi-compat-libdns_sd, p-cpe:/a:centos:centos:avahi, p-cpe:/a:centos:centos:avahi-ui-devel, p-cpe:/a:centos:centos:avahi-qt3-devel, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:avahi-gobject, p-cpe:/a:centos:centos:avahi-glib-devel, p-cpe:/a:centos:centos:avahi-compat-howl, p-cpe:/a:centos:centos:avahi-compat-howl-devel, p-cpe:/a:centos:centos:avahi-compat-libdns_sd-devel, p-cpe:/a:centos:centos:avahi-tools, p-cpe:/a:centos:centos:avahi-qt4-devel, p-cpe:/a:centos:centos:avahi-autoipd

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/8/2020

Vulnerability Publication Date: 5/1/2017

Reference Information

CVE: CVE-2017-6519

RHSA: 2020:1176