CVE-2019-10691

Published: Apr 24, 2019Modified: Jun 17, 2026

7.5

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.

Affected (2)

Products: Dovecot: Dovecot · Opensuse: Leap

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Dovecot Dovecot	Before 2.3.5.2

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Opensuse Leap	Version 15.0

References (10)

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2019/04/18/3

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://dovecot.org/list/dovecot-news/2019-April/000406.html

Source: cve@mitre.org

Mailing ListVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/

Source: cve@mitre.org

https://security.gentoo.org/glsa/201908-29

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html