CVE-2021-32055

Ubuntu Security Notice USN-7204-1

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mutt 1.11.0 through 2.0.x before 2.0.7 (and NeoMutt 2019-10-25 through 2021-05-04) has a $imap_qresync issue in which imap/util.c has an out-of-bounds read in situations where an IMAP sequence set ends with a comma. NOTE: the $imap_qresync setting for QRESYNC is not enabled by default.

Mutt versiones 1.11.0 hasta 2.0.x versiones anteriores a 2.0.7 (y NeoMutt versiones del 25-10-2019 hasta 04-05-2021) presenta un problema de $imap_qresync en donde el archivo imap/util.c presenta una lectura fuera de límites en situaciones en las que un ajuste de secuencias IMAP termina con una coma. NOTA: la configuración $ imap_qresync para QRESYNC no está habilitada por defecto

It was discovered that Mutt incorrectly handled certain requests. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 20.04 LTS. It was discovered that Mutt incorrectly handled certain input. An attacker could possibly use this issue to cause a crash, or expose sensitive information.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-05-05 CVE Reserved
2021-05-05 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/neomutt/neomutt/commit/fa1db5785e5cfd9d3cd27b7571b9fe268d2ec2dc	2021-06-01
https://gitlab.com/muttmua/mutt/-/commit/7c4779ac24d2fb68a2a47b58c7904118f40965d5	2021-06-01

URL	Date	SRC
http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20210503/000036.html	2021-06-01
https://security.gentoo.org/glsa/202105-05	2021-06-01

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"				>= 1.11.0 < 2.0.7 Search vendor "Mutt" for product "Mutt" and version " >= 1.11.0 < 2.0.7"		-		Affected
Neomutt Search vendor "Neomutt"		Neomutt Search vendor "Neomutt" for product "Neomutt"				>= 20191025 <= 20210504 Search vendor "Neomutt" for product "Neomutt" and version " >= 20191025 <= 20210504"		-		Affected