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CVE-2019-10691

Date: April 24, 2019

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.

Language: C

Severity Score

Related Resources (11)

https://security.gentoo.org/glsa/201908-29
https://dovecot.org/list/dovecot-news/2019-April/000406.html
http://www.openwall.com/lists/oss-security/2019/04/18/3
https://security-tracker.debian.org/tracker/CVE-2019-10691
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-10691
https://nvd.nist.gov/vuln/detail/CVE-2019-10691
https://security.alpinelinux.org/vuln/CVE-2019-10691
https://www.mend.io/vulnerability-database/CVE-2019-10691

Severity Score

Weakness Type (CWE)

Improper Authentication

CWE-287

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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