PT-2020-5911 · Mutt+5 · Mutt+5

Damian Poddebniak + 1 · Published 2020-06-19 · Updated 2025-01-15 · CVE-2020-14954

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Mutt versions prior to 1.14.4 NeoMutt versions prior to 2020-06-19

Description: The issue is related to a STARTTLS buffering problem that affects IMAP, SMTP, and POP3 protocols. When a server sends a "begin TLS" response, the client reads additional data and evaluates it in a TLS context, which can lead to "response injection." This can potentially allow a remote attacker to gain unauthorized access to protected information.

Recommendations: For Mutt versions prior to 1.14.4, update to version 1.14.4 or later. For NeoMutt versions prior to 2020-06-19, update to a version released after 2020-06-19. As a temporary workaround, consider restricting the use of STARTTLS to minimize the risk of exploitation.

Fix

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

ALT-PU-2020-2259

ALT-PU-2020-2756

ALT-PU-2021-1100

BDU:2021-02007

CVE-2020-14954

DLA-2268-1

DLA-2268-2

DSA-4707-1

DSA-4708-1

MGASA-2020-0357

OESA-2022-1561

OPENSUSE-SU-2020:0903-1

OPENSUSE-SU-2020:0915-1

OPENSUSE-SU-2020:2127-1

OPENSUSE-SU-2020:2157-1

OPENSUSE-SU-2020:2158-1

OPENSUSE-SU-2020_0903-1

OPENSUSE-SU-2020_0915-1

OPENSUSE-SU-2020_2127-1

OPENSUSE-SU-2024:11069-1

OPENSUSE-SU-2024:11079-1

SUSE-SU-2020:14414-1

SUSE-SU-2020:1771-1

SUSE-SU-2020:1794-1

USN-4403-1

USN-7204-1

Affected Products

Alt Linux

Linuxmint

Mutt

Neomutt

Suse

Ubuntu

References · 108

• https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc · Patch
• https://ubuntu.com/security/CVE-2018-14354 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-14362 · Vendor Advisory
• https://debian.org/security/2020/dsa-4708 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:2157-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-14954 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-14361 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-14353 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-14355 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/K3LXFVPTLK4PNHL6MPKJNJQJ25CH7GLQ · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1794-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14954 · Security Note
• https://ubuntu.com/security/CVE-2018-14352 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7204-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:2158-1 · Vendor Advisory