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 6.8 MEDIUM
CVSS v2.0 4.9 MEDIUM

6.8^/10

CVSS v3 : 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
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.html	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3467
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814	Issue Tracking Release Notes Third Party Advisory
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.gentoo.org/glsa/201904-19
https://www.dovecot.org/list/dovecot/2019-February/114575.html	Exploit Mailing List Vendor Advisory

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

Configuration 3 (hide)

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

History

No history.

Information

Published : 2019-03-27 13:29

Updated : 2024-02-04 20:20

NVD link : CVE-2019-3814

Mitre link : CVE-2019-3814

CVE.ORG link : CVE-2019-3814

JSON object : View

Products Affected

opensuse

leap

canonical

ubuntu_linux

dovecot

dovecot

CWE

CWE-295

Improper Certificate Validation

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A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users."}, {"lang": "es", "value": "Se ha descubierto que Dovecot, en versiones anteriores a la 2.2.36.1 y 2.3.4.1, gestiona de manera incorrecta los certificados del cliente. Un atacante remoto en posesi\u00f3n de un certificado v\u00e1lido con un campo \"username\" vac\u00edo podr\u00eda emplear este problema para suplantar a otros usuarios."}], "lastModified": "2023-11-07T03:10:12.627", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7EC4FD5-8BCE-4412-B8F6-53F4DD0D6CE7", "versionEndExcluding": "2.2.36.1", "versionStartIncluding": "1.1.0"}, {"criteria": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C44A57B-1823-40EE-A24F-44144C505859", "versionEndExcluding": "2.3.4.1", "versionStartIncluding": "2.3.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*", "vulnerable": true, "matchCriteriaId": "8D305F7A-D159-4716-AB26-5E38BB5CD991"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F65DAB0-3DAD-49FF-BC73-3581CC3D5BF3"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}