CVE Vulnerability

CVE-2019-10691

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://dovecot.org/list/dovecot-news/2019-April/000406.html Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2019/04/18/3 Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
https://security.gentoo.org/glsa/201908-29
Configurations

Configuration 1

cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
Information

Published : 2019-04-24 05:29

Updated : 2020-08-24 05:37

NVD link : CVE-2019-10691

Mitre link : CVE-2019-10691

Products Affected
No products.
CWE
NVD-CWE-noinfo