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.

CVSS v3.0 6.8 MEDIUM
CVSS v2.0 4.9 MEDIUM

6.8^/10

CVSS v3.0 : MEDIUM

Vector : AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:N

Exploitability : 6.8 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://www.dovecot.org/list/dovecot/2019-February/114575.html	Exploit Mailing List 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
https://security.gentoo.org/glsa/201904-19
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://access.redhat.com/errata/RHSA-2019:3467

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:dovecot:dovecot::::::::
	cpe:2.3:a:dovecot:dovecot::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:12.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::

Configuration 3 (hide)

cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*

Information

Published : 2019-03-27 06:29

Updated : 2019-06-13 20:29

NVD link : CVE-2019-3814

Mitre link : CVE-2019-3814

JSON object : View

CWE

CWE-295

Improper Certificate Validation

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Products Affected

canonical

ubuntu_linux

dovecot

dovecot

opensuse

leap

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