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FreeBSD : dendrite -- Incorrect parsing of the event default power level in event auth (d658042c-1c98-11ed-95f8-901b0e9408dc)

high Nessus Plugin ID 164135

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the d658042c-1c98-11ed-95f8-901b0e9408dc advisory.

 - Dendrite team reports: The power level parsing within gomatrixserverlib was failing to parse the events_default key of the m.room.power_levels event, defaulting the event default power level to zero in all cases. In rooms where the events_default power level had been changed, this could result in events either being incorrectly authorised or rejected by Dendrite servers.
 (d658042c-1c98-11ed-95f8-901b0e9408dc)

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

http://www.nessus.org/u?fb57842c

http://www.nessus.org/u?445e6125

Plugin Details

Severity: High

ID: 164135

File Name: freebsd_pkg_d658042c1c9811ed95f8901b0e9408dc.nasl

Version: 1.2

Type: local

Published: 8/16/2022

Updated: 8/16/2022

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:dendrite, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 8/15/2022

Vulnerability Publication Date: 8/15/2022