Vulnerability Monitor

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CVE-2015-3420

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.

Published

2017-09-19T15:29:00.740

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-295

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	dovecot	dovecot	≤ 2.2.16	Yes
Operating System	fedoraproject	fedora	20	Yes
Operating System	fedoraproject	fedora	21	Yes
Operating System	fedoraproject	fedora	22	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.html Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2015/04/27/1 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2015/04/28/4 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/74335 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1216057 Issue Tracking, Third Party Advisory ([email protected])
https://dovecot.org/pipermail/dovecot-news/2015-May/000292.html Vendor Advisory ([email protected])
https://dovecot.org/pipermail/dovecot/2015-April/100618.html Vendor Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/04/27/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/04/28/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/74335 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1216057 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://dovecot.org/pipermail/dovecot-news/2015-May/000292.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://dovecot.org/pipermail/dovecot/2015-April/100618.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)