Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2019-3814

Improper Certificate Validation

Published: Mar 27, 2019 | Modified: Nov 21, 2024
CVSS 3.x
6.8
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
4.9 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:N
RedHat/V2
RedHat/V3
7.7 MODERATE
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-3814
CWEhttps://cwe.mitre.org/data/definitions/295.html

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.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
DovecotDovecot1.1.0 (including)2.2.36.1 (excluding)
DovecotDovecot2.3.0 (including)2.3.4.1 (excluding)
Red Hat Enterprise Linux 7RedHatdovecot-1:2.2.36-6.el7*
Red Hat Enterprise Linux 8RedHatdovecot-1:2.2.36-10.el8*
DovecotUbuntubionic*
DovecotUbuntucosmic*
DovecotUbuntudevel*
DovecotUbuntuesm-infra-legacy/trusty*
DovecotUbuntuesm-infra/bionic*
DovecotUbuntuesm-infra/xenial*
DovecotUbuntutrusty*
DovecotUbuntutrusty/esm*
DovecotUbuntuupstream*
DovecotUbuntuxenial*

Potential Mitigations

References

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