Resource exhaustion in Dovecot
CVE-2017-15130
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Dovecot
- The Dovecot Project — versions before 2.2.34
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- usn.ubuntu.com/3587-1/ (vendor-advisory, Third Party Advisory)
- seclists.org/oss-sec/2018/q1/205 (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/03/msg00036.html (mailing-list)
- www.debian.org/security/2018/dsa-4130 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3587-2/ (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.dovecot.org/list/dovecot-news/2018-February/000370.html (Vendor Advisory, mailing-list, Release Notes)
Frequently asked questions
- What is CVE-2017-15130?
- CVE-2017-15130 is a medium-severity vulnerability in Dovecot, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2018-03-02.
- How severe is CVE-2017-15130?
- Medium severity. CVSS v3 base score is 5.9 out of 10.