openEuler update for dovecot

Published: 2024-08-23

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-23184 CVE-2024-23185
CWE-ID	CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	openEuler Operating systems & Components / Operating system dovecot-help Operating systems & Components / Operating system package or component dovecot-devel Operating systems & Components / Operating system package or component dovecot-debugsource Operating systems & Components / Operating system package or component dovecot-debuginfo Operating systems & Components / Operating system package or component dovecot Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU96022

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-23184

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources when parsing a large number of address headers (e.g. From, To, Cc, Bcc, etc.). A remote attacker can send a specially crafted email address to the server, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4 - 24.03 LTS

dovecot-help: before 2.3.15-6

dovecot-devel: before 2.3.15-6

dovecot-debugsource: before 2.3.15-6

dovecot-debuginfo: before 2.3.15-6

dovecot: before 2.3.15-6

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2009

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

2) Resource exhaustion

EUVDB-ID: #VU96021