National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2015-3420 Detail

Current Description

The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.

Source:  MITRE
Description Last Modified:  09/19/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.9 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.2

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6

Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/04/27/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/04/28/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/74335 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1216057 Issue Tracking Third Party Advisory
https://dovecot.org/pipermail/dovecot/2015-April/100618.html Vendor Advisory
https://dovecot.org/pipermail/dovecot-news/2015-May/000292.html Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Certificate Validation (CWE-295)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-3420
NVD Published Date:
09/19/2017
NVD Last Modified:
10/05/2017