GLSA-202009-02 : Dovecot: Multiple vulnerabilities

Medium Nessus Plugin ID 140316

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VPR Score: 5.1

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-202009-02 (Dovecot: Multiple vulnerabilities)

It was discovered that Dovecot incorrectly handled deeply nested MIME parts, incorrectly handled memory when using NTLM, and incorrectly handled zero-length messages.
Impact :

A remote attacker could send a specially crafted mail or send specially crafted authentication requests possibly resulting in a Denial of Service condition.
Workaround :

There is no known workaround at this time.

Solution

All Dovecot users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-mail/dovecot-2.3.11.3'

See Also

https://security.gentoo.org/glsa/202009-02

Plugin Details

Severity: Medium

ID: 140316

File Name: gentoo_GLSA-202009-02.nasl

Version: 1.2

Type: local

Published: 2020/09/08

Updated: 2020/09/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.1

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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: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: 2020/09/06

Vulnerability Publication Date: 2020/08/12

Reference Information

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

GLSA: 202009-02