GLSA-202101-01 : Dovecot: Multiple vulnerabilities

medium Nessus Plugin ID 144821
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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-202101-01 (Dovecot: Multiple vulnerabilities)

Multiple vulnerabilities have been discovered in Dovecot. Please review the CVE identifiers referenced below for details.
Impact :

A remote attacker could send a specially crafted mail or send a specially crafted IMAP command possibly resulting in a Denial of Service condition or an authenticated remote attacker might be able to discover the file system directory structure and access other users’ emails.
Workaround :

The information disclosure vulnerability can be mitigated by disabling IMAP hibernation feature which isn’t enabled by default.

Solution

All Dovecot users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-mail/dovecot-2.3.13'

See Also

https://security.gentoo.org/glsa/202101-01

Plugin Details

Severity: Medium

ID: 144821

File Name: gentoo_GLSA-202101-01.nasl

Version: 1.2

Type: local

Published: 1/11/2021

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-24386

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: AV:N/AC:M/Au:S/C:P/I:P/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:dovecot, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/10/2021

Vulnerability Publication Date: 1/4/2021

Reference Information

CVE: CVE-2020-24386, CVE-2020-25275

GLSA: 202101-01