Medium severity · published Feb 17, 2017
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…
5.9
CVSS
48.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)48.2% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
Dovecot · Dovecot
through 2.2.27 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-8652
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-8652
Release Notes
http://dovecot.org/pipermail/dovecot-news/2016-December/000333.html
Mailing List
http://www.openwall.com/lists/oss-security/2016/12/02/4
Mailing List
http://www.openwall.com/lists/oss-security/2016/12/05/12
Third Party Advisory
http://www.securityfocus.com/bid/94639
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