FreeBSD : dovecot-pigeonhole -- Sieve excessive resource usage (f3fc2b50-d36a-11eb-a32c-00a0989e4ec1)

medium Nessus Plugin ID 151001

Language:

Synopsis

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

Description

Dovecot team reports reports :

Sieve interpreter is not protected against abusive scripts that claim excessive resource usage. Fixed by limiting the user CPU time per single script execution and cumulatively over several script runs within a configurable timeout period. Sufficiently large CPU time usage is summed in the Sieve script binary and execution is blocked when the sum exceeds the limit within that time. The block is lifted when the script is updated after the resource usage times out.

Solution

Update the affected package.

Plugin Details

Severity: Medium

ID: 151001

File Name: freebsd_pkg_f3fc2b50d36a11eba32c00a0989e4ec1.nasl

Version: 1.3

Type: local

Family: FreeBSD Local Security Checks

Published: 6/25/2021

Updated: 7/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2020-28200

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:dovecot-pigeonhole, 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: 6/22/2021

Vulnerability Publication Date: 9/23/2020

Reference Information

CVE: CVE-2020-28200

Detections

Analytics