CVE-2016-8652

MEDIUM

Dovecot < 2.2.27 - Denial of Service via Authentication Abort Without Username

Title source: llm

Description

The auth component in Dovecot before 2.2.27, when auth-policy is configured, allows a remote attackers to cause a denial of service (crash) by aborting authentication without setting a username.

References (4)

Core 4

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/94639

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2016/12/02/4

Release Notes, Vendor Advisory mailing-list x_refsource_mlist

http://dovecot.org/pipermail/dovecot-news/2016-December/000333.html

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2016/12/05/12

Scores

CVSS v3 5.9

EPSS 0.4820

EPSS Percentile 98.7%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-20

Status published

Products (1)

dovecot/dovecot < 2.2.27

Published Feb 17, 2017

Tracked Since Feb 18, 2026