CVE-2015-3420

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 7.63% Top 10%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory dovecot.org Vendor Advisory dovecot.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2015/04/28/4 third party advisory mailing list
https://dovecot.org/pipermail/dovecot/2015-April/100618.html vendor advisory mailing list
https://dovecot.org/pipermail/dovecot-news/2015-May/000292.html vendor advisory mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.html third party advisory vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.html third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1216057 third party advisory issue tracking
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.html third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2015/04/27/1 third party advisory mailing list
http://www.securityfocus.com/bid/74335 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2015-3420?
CVE-2015-3420 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3420?
To fix CVE-2015-3420, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3420 being actively exploited in the wild?
It is possible that CVE-2015-3420 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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