CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
69.4%
It was discovered that Dovecot incorrectly handled client certificates. A
remote attacker in possession of a valid certificate with an empty username
field could possibly use this issue to impersonate other users.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 18.10 | noarch | dovecot-core | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-auth-lua | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-auth-lua-dbgsym | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-core-dbgsym | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-dev | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-gssapi | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-gssapi-dbgsym | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-imapd | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-imapd-dbgsym | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
Ubuntu | 18.10 | noarch | dovecot-ldap | < 1:2.3.2.1-1ubuntu3.1 | UNKNOWN |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:P/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
69.4%