CVE-2017-15130

Description

A denial of service flaw was found in dovecot before 2.2.34. An attacker able to generate random SNI server names could exploit TLS SNI configuration lookups, leading to excessive memory usage and the process to restart.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.21% Top 25%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory dovecot.org
Affected: The Dovecot Project dovecot
Published at:
Updated at:

References

Link Tags
https://usn.ubuntu.com/3587-1/ third party advisory vendor advisory
http://seclists.org/oss-sec/2018/q1/205 third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2018/03/msg00036.html mailing list
https://www.debian.org/security/2018/dsa-4130 third party advisory vendor advisory
https://usn.ubuntu.com/3587-2/ vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1532356 issue tracking third party advisory
https://www.dovecot.org/list/dovecot-news/2018-February/000370.html mailing list release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-15130?
CVE-2017-15130 has been scored as a medium severity vulnerability.
How to fix CVE-2017-15130?
To fix CVE-2017-15130, 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-2017-15130 being actively exploited in the wild?
It is possible that CVE-2017-15130 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-15130?
CVE-2017-15130 affects The Dovecot Project dovecot.
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