Vulnerability Details : 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.
Vulnerability category: Input validationDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-8652
Probability of exploitation activity in the next 30 days: 1.46%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-8652
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST |
5.9
|
MEDIUM | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2016-8652
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The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-8652
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http://www.openwall.com/lists/oss-security/2016/12/05/12
oss-security - Re: Important vulnerability in Dovecot (CVE-2016-8652)Mailing List;Third Party Advisory
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http://www.securityfocus.com/bid/94639
Dovecot Auth Component CVE-2016-8652 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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http://dovecot.org/pipermail/dovecot-news/2016-December/000333.html
[Dovecot-news] v2.2.27 releasedRelease Notes;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2016/12/02/4
oss-security - Important vulnerability in Dovecot (CVE-2016-8652)Mailing List;Third Party Advisory
Products affected by CVE-2016-8652
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*