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Status published
High
CVE-2019-10691
The JSON encoder in Dovecot before 2.3.5.2 allows attackers to...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.openwall.com/lists/oss-security/2019/04/18/3
- https://dovecot.org/list/dovecot-news/2019-April/000406.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://security.gentoo.org/glsa/201908-29
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Affected Vendor
dovecot
View all reports →Affected Software
dovecot, leap
Vulnerable Versions:
0, 15.0
Timeline
Official Publish:
April 24th, 2019
Last Modified:
August 4th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.