Improper Certificate Validation Affecting dovecot package, versions <1:2.3.4.1-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-DOVECOT-336257
- published7 Feb 2019
- disclosed27 Mar 2019
Introduced: 7 Feb 2019
CVE-2019-3814 (opens in a new tab)How to fix?
Upgrade Debian:unstable dovecot to version 1:2.3.4.1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dovecot package and not the dovecot package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-3814
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3814
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
- https://security.gentoo.org/glsa/201904-19
- https://www.dovecot.org/list/dovecot/2019-February/114575.html
- 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
- http://people.ubuntu.com/~ubuntu-security/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/