Debian DLA-2268-2 : mutt regression update

medium Nessus Plugin ID 137911

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Synopsis

The remote Debian host is missing a security update.

Description

Two vulnerabilities have been discovered in mutt, a console email client.

CVE-2020-14093

Mutt allowed an IMAP fcc/postpone man-in-the-middle attack via a PREAUTH response.

CVE-2020-14954

Mutt had a STARTTLS buffering issue that affected IMAP, SMTP, and POP3. When a server had sent a 'begin TLS' response, the client read additional data (e.g., from a man-in-the-middle attacker) and evaluated it in a TLS context, aka 'response injection.'

In Debian jessie, the mutt source package builds two variants of mutt:
mutt and mutt-patched.

The previous package version (1.5.23-3+deb8u2, DLA-2268-1) provided fixes for the issues referenced above, but they were only applied for the mutt-patched package build, not for the (vanilla) mutt package build.

For Debian 8 'Jessie', this problem has been fixed in version 1.5.23-3+deb8u3.

We recommend that you upgrade your mutt packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected mutt, mutt-dbg, and mutt-patched packages.

Plugin Details

Severity: Medium

ID: 137911

File Name: debian_DLA-2268.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/1/2020

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2020-14954

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:mutt, p-cpe:/a:debian:debian_linux:mutt-dbg, p-cpe:/a:debian:debian_linux:mutt-patched, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 6/30/2020

Vulnerability Publication Date: 6/15/2020

Reference Information

CVE: CVE-2020-14093, CVE-2020-14954

Detections

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