Vulnerability in Dovecot
CVE-2019-3814
It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.024 (83.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Dovecot — versions 2.2.36.1, 2.3.4.1
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- openSUSE Leap — versions 42.3
Weakness classification (CWE)
References
- www.dovecot.org/list/dovecot/2019-February/114575.html (Exploit, Mailing List, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Release Notes, Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201904-19 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3467 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-3814?
- CVE-2019-3814 is a high-severity vulnerability in Dovecot, classified under Improper Certificate Validation. CVSS score: 7.7/10. Published 2019-03-27.
- How severe is CVE-2019-3814?
- High severity. CVSS v3 base score is 7.7 out of 10.