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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

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

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*

Information

Published : 2019-04-24 10:29

Updated : 2020-08-24 10:37

NVD link : CVE-2019-10691

Mitre link : CVE-2019-10691

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

dovecot

dovecot

opensuse

leap

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