Vulnerability identifier: #VU10838

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14461

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Dovecot
Server applications / Mail servers

Vendor: Dovecot

Description

The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information or cause DoS condition on the target system.

The weakness exists due to improper parsing of crafted email messages. A remote attacker can send a specially crafted email message over SMTP, trick the victim into opening it, trigger an out-of-bounds read and gain access to potentially sensitive information or cause the service to crash.

Mitigation
Update to version 2.2.34.

Vulnerable software versions

Dovecot: 2.2.33.2

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External links
http://www.dovecot.org/list/dovecot-news/2018-February/000370.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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