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CBL Mariner 2.0 Security Update: avahi (CVE-2021-3468)

medium Nessus Plugin ID 201594

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of avahi installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2021-3468 advisory.

 - A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.
 (CVE-2021-3468)

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://nvd.nist.gov/vuln/detail/CVE-2021-3468

Plugin Details

Severity: Medium

ID: 201594

File Name: mariner_CVE-2021-3468.nasl

Version: 1.1

Type: local

Published: 7/3/2024

Updated: 7/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-3468

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:avahi-gobject-devel, p-cpe:/a:microsoft:cbl-mariner:avahi-glib, p-cpe:/a:microsoft:cbl-mariner:avahi-compat-libdns_sd-devel, p-cpe:/a:microsoft:cbl-mariner:avahi-compat-libdns_sd, p-cpe:/a:microsoft:cbl-mariner:avahi-dnsconfd, p-cpe:/a:microsoft:cbl-mariner:avahi, p-cpe:/a:microsoft:cbl-mariner:avahi-devel, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:avahi-autoipd, p-cpe:/a:microsoft:cbl-mariner:avahi-debuginfo, p-cpe:/a:microsoft:cbl-mariner:avahi-glib-devel, p-cpe:/a:microsoft:cbl-mariner:avahi-gobject, p-cpe:/a:microsoft:cbl-mariner:avahi-tools, p-cpe:/a:microsoft:cbl-mariner:avahi-compat-howl-devel, p-cpe:/a:microsoft:cbl-mariner:avahi-libs, p-cpe:/a:microsoft:cbl-mariner:avahi-compat-howl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2024

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-3468