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CVE-2015-3420

Good to know:

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Date: September 19, 2017

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.

Language: C

Severity Score

Related Resources (12)

http://www.openwall.com/lists/oss-security/2015/04/27/1
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.html
https://nvd.nist.gov/vuln/detail/CVE-2015-3420
http://www.securityfocus.com/bid/74335
https://security-tracker.debian.org/tracker/CVE-2015-3420
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.html
https://bugzilla.redhat.com/show_bug.cgi?id=1216057
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.html
https://dovecot.org/pipermail/dovecot/2015-April/100618.html
https://dovecot.org/pipermail/dovecot-news/2015-May/000292.html
http://www.openwall.com/lists/oss-security/2015/04/28/4
https://www.mend.io/vulnerability-database/CVE-2015-3420

Severity Score

Weakness Type (CWE)

Improper Certificate Validation

CWE-295

Top Fix

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CVSS v3.1

Base Score:
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

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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