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FreeBSD : syncthing -- crash due to malformed relay protocol message (9ee01e60-6045-43df-98e5-a794007e54ef)

high Nessus Plugin ID 148520

Synopsis

The remote FreeBSD host is missing a security-related update.

Description

syncthing developers report :

syncthing can be caused to crash and exit if sent a malformed relay protocol message message with a negative length field.

The relay server strelaysrv can be caused to crash and exit if sent a malformed relay protocol message with a negative length field.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?d06ec4b6

http://www.nessus.org/u?9b89eb1b

Plugin Details

Severity: High

ID: 148520

File Name: freebsd_pkg_9ee01e60604543df98e5a794007e54ef.nasl

Version: 1.3

Type: local

Published: 4/14/2021

Updated: 4/16/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-21404

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:freebsd:freebsd:syncthing, 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: 4/12/2021

Vulnerability Publication Date: 4/6/2021

Reference Information

CVE: CVE-2021-21404