Cyber Risks · Cisco Talos

Vulnerability Spotlight: Dovecot out-of-bounds Read Vulnerability

Summary: Cisco Talos disclosed an out-of-bounds read vulnerability, CVE-2017-14461 (TALOS-2017-0510), in the RFC822 parser of Dovecot IMAP Server 2.2.33.2, discovered by Aleksander Nikolic. An attacker could send a specially crafted email over SMTP that the message transfer agent passes to Dovecot, triggering the flaw and potentially causing disclosure of sensitive information and a denial of service; Dovecot released version 2.2.34 to fix it.

What you should know: The trigger is an ordinary inbound email, so any internet-facing Dovecot 2.2.33.2 server can be reached by an attacker without credentials, and the outcome includes both leaked sensitive information and a denial of service.

Read the original at Cisco Talos ↗

Topics
Endpoint & Network Security
Mentions
CVE-2017-14461
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