NewStart CGSL CORE 5.05 / MAIN 5.05 : dovecot Multiple Vulnerabilities (NS-SA-2021-0166)

high Nessus Plugin ID 154541


The remote NewStart CGSL host is affected by multiple vulnerabilities.


The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has dovecot packages installed that are affected by multiple vulnerabilities:

- In Dovecot before, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts. (CVE-2020-12100)

- In Dovecot before, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read. (CVE-2020-12673)

- In Dovecot before, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled. (CVE-2020-12674)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade the vulnerable CGSL dovecot packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

See Also

Plugin Details

Severity: High

ID: 154541

File Name: newstart_cgsl_NS-SA-2021-0166_dovecot.nasl

Version: 1.3

Type: local

Published: 10/27/2021

Updated: 11/27/2023

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-12674


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_core:dovecot, p-cpe:/a:zte:cgsl_core:dovecot-devel, p-cpe:/a:zte:cgsl_core:dovecot-mysql, p-cpe:/a:zte:cgsl_core:dovecot-pgsql, p-cpe:/a:zte:cgsl_core:dovecot-pigeonhole, p-cpe:/a:zte:cgsl_main:dovecot, p-cpe:/a:zte:cgsl_main:dovecot-devel, p-cpe:/a:zte:cgsl_main:dovecot-mysql, p-cpe:/a:zte:cgsl_main:dovecot-pgsql, p-cpe:/a:zte:cgsl_main:dovecot-pigeonhole, cpe:/o:zte:cgsl_core:5, cpe:/o:zte:cgsl_main:5

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/24/2021

Vulnerability Publication Date: 8/12/2020

Reference Information

CVE: CVE-2020-12100, CVE-2020-12673, CVE-2020-12674