Multiple vulnerabilities in Mutt

Published: 2023-09-11

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-4874 CVE-2023-4875
CWE-ID	CWE-476
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Mutt Client/Desktop applications / Office applications
Vendor	Mutt.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU80636

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4874

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when viewing a specially crafted email. A remote attacker can trick the victim to open a specially crafted email and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mutt: 1.5.3 - 2.2.11

External links

http://gitlab.com/muttmua/mutt/-/commit/a4752eb0ae0a521eec02e59e51ae5daedf74fda0.patch
http://gitlab.com/muttmua/mutt/-/commit/452ee330e094bfc7c9a68555e5152b1826534555.patch
http://www.debian.org/security/2023/dsa-5494

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) NULL pointer dereference

EUVDB-ID: #VU80635