CVE-2016-8652

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.

CVSS v3 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

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

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://dovecot.org/pipermail/dovecot-news/2016-December/000333.html	Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/02/4	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/05/12	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/94639	Third Party Advisory VDB Entry
http://dovecot.org/pipermail/dovecot-news/2016-December/000333.html	Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/12/02/4	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/05/12	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/94639	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-02-17 02:59

Updated : 2025-04-20 01:37

NVD link : CVE-2016-8652

Mitre link : CVE-2016-8652

CVE.ORG link : CVE-2016-8652

JSON object : View

Products Affected

dovecot

dovecot

CWE

CWE-20

Improper Input Validation

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