CVE-2023-4875

Undefined Behavior for Input to API in Mutt

Severity Score

5.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Null pointer dereference when composing from a specially crafted draft message in Mutt >1.5.2 <2.2.12

Eliminación de referencia del puntero nulo al redactar a partir de un mensaje de borrador especialmente manipulado en Mutt versiones >1.5.2 y <2.2.12

A null pointer dereference flaw was found in mutt when handling specially crafted characters. This issue could allow an attacker to send a specially crafted email that causes the email client to crash when reading or processing the email.

Several NULL pointer dereference flaws were discovered in Mutt, a text-based mailreader supporting MIME, GPG, PGP and threading, which may result in denial of service (application crash) when viewing a specially crafted email or when composing from a specially crafted draft message.

*Credits: Chenyuan Mi

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-09-09 CVE Reserved
2023-09-09 CVE Published
2024-08-30 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-475: Undefined Behavior for Input to API
CWE-476: NULL Pointer Dereference

CAPEC

References (7)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/09/msg00021.html	Mailing List
https://www.debian.org/security/2023/dsa-5494	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2023/09/26/6	2023-10-15
https://gitlab.com/muttmua/mutt/-/commit/452ee330e094bfc7c9a68555e5152b1826534555.patch	2023-10-15
https://gitlab.com/muttmua/mutt/-/commit/4cc3128abdf52c615911589394a03271fddeefc6.patch	2023-10-15

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-4875	2024-05-22
https://bugzilla.redhat.com/show_bug.cgi?id=2238241	2024-05-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mutt Search vendor "Mutt"		Mutt Search vendor "Mutt" for product "Mutt"				> 1.5.2 < 2.2.12 Search vendor "Mutt" for product "Mutt" and version " > 1.5.2 < 2.2.12"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				12.0 Search vendor "Debian" for product "Debian Linux" and version "12.0"		-		Affected