5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.4 Medium
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
75.1%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Alpine | edge-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.10-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.11-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.12-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.13-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.14-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.15-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.16-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.17-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
Alpine | 3.18-main | noarch | dovecot | < 2.3.6-r0 | UNKNOWN |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.4 Medium
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
75.1%