Detections
Analytics

Fedora 38 : matrix-synapse (2023-c3c8cc5f8b)

medium Nessus Plugin ID 183452

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Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 38 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-c3c8cc5f8b advisory.

 - Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Prior to version 1.94.0, a malicious server ACL event can impact performance temporarily or permanently leading to a persistent denial of service. Homeservers running on a closed federation (which presumably do not need to use server ACLs) are not affected. Server administrators are advised to upgrade to Synapse 1.94.0 or later. As a workaround, rooms with malicious server ACL events can be purged and blocked using the admin API. (CVE-2023-45129)

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 matrix-synapse package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2023-c3c8cc5f8b

Plugin Details

Severity: Medium

ID: 183452

File Name: fedora_2023-c3c8cc5f8b.nasl

Version: 1.0

Type: local

Agent: unix

Published: 10/20/2023

Updated: 10/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2023-45129

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

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

Vulnerability Information

CPE: cpe:/o:fedoraproject:fedora:38, p-cpe:/a:fedoraproject:fedora:matrix-synapse

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2023

Vulnerability Publication Date: 10/10/2023

Reference Information

CVE: CVE-2023-45129