CVE-2019-3814

Public Exploit

Description

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.

Category

7.7
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.29%
Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory dovecot.org
Affected: dovecot dovecot
Published at:
Updated at:

References

Link Tags
https://www.dovecot.org/list/dovecot/2019-February/114575.html mailing list exploit vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814 issue tracking release notes third party advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.html mailing list third party advisory vendor advisory
https://security.gentoo.org/glsa/201904-19 vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/ vendor advisory
https://access.redhat.com/errata/RHSA-2019:3467 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-3814?
CVE-2019-3814 has been scored as a high severity vulnerability.
How to fix CVE-2019-3814?
To fix CVE-2019-3814, 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-2019-3814 being actively exploited in the wild?
It is possible that CVE-2019-3814 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-3814?
CVE-2019-3814 affects dovecot dovecot.
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