CVE-2019-3814
First published: Thu Feb 07 2019(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Dovecot Dovecot | >=1.1.0<2.2.36.1 | |
| Dovecot Dovecot | >=2.3.0<2.3.4.1 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| openSUSE Leap | =42.3 | |
| redhat/dovecot | <2.2.36.1 | 2.2.36.1 |
| redhat/dovecot | <2.3.4.1 | 2.3.4.1 |
| debian/dovecot | 1:2.3.13+dfsg1-2+deb11u1 1:2.3.13+dfsg1-2+deb11u2 1:2.3.19.1+dfsg1-2.1+deb12u1 1:2.3.21.1+dfsg1-1 | |
| >=1.1.0<2.2.36.1 | ||
| >=2.3.0<2.3.4.1 | ||
| =12.04 | ||
| =14.04 | ||
| =16.04 | ||
| =18.04 | ||
| =18.10 | ||
| =42.3 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.html
- https://access.redhat.com/errata/RHSA-2019:3467
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://security.gentoo.org/glsa/201904-19
- https://www.dovecot.org/list/dovecot/2019-February/114575.html
- https://launchpad.net/bugs/cve/CVE-2019-3814
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://security-tracker.debian.org/tracker/source-package/dovecot
- https://usn.ubuntu.com/usn/usn-3881-1
- https://usn.ubuntu.com/usn/usn-3881-2
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1673416
- https://access.redhat.com/security/cve/cve-2019-3814
- https://access.redhat.com/errata/RHSA-2020:1062
- https://bugzilla.redhat.com/show_bug.cgi?id=1673415
- https://www.openwall.com/lists/oss-security/2019/02/05/1
- https://security-tracker.debian.org/tracker/CVE-2019-3814
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3814
- https://nvd.nist.gov/vuln/detail/CVE-2019-3814
- https://ubuntu.com/security/CVE-2019-3814
Frequently Asked Questions
What is CVE-2019-3814?
CVE-2019-3814 is a vulnerability in Dovecot that incorrectly handles client certificates, allowing a remote attacker to impersonate other users.
What is the severity of CVE-2019-3814?
The severity of CVE-2019-3814 is high, with a severity value of 6.8.
How does CVE-2019-3814 affect Dovecot?
CVE-2019-3814 affects Dovecot versions 2.2.36.1 and 2.3.4.1.
How can an attacker exploit CVE-2019-3814?
An attacker in possession of a valid certificate with an empty username field can exploit CVE-2019-3814 to impersonate other users.
Are there any remedies available for CVE-2019-3814?
Yes, updating to Dovecot versions 2.2.36.1 or 2.3.4.1 can fix CVE-2019-3814.
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