CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
77.0%
Kirin discovered that Dovecot incorrectly escaped kid and azp fields in JWT
tokens. A local attacker could possibly use this issue to validate tokens
using arbitrary keys. This issue only affected Ubuntu 20.10 and Ubuntu
21.04. (CVE-2021-29157)
Fabian Ising and Damian Poddebniak discovered that Dovecot incorrectly
handled STARTTLS when using the SMTP submission service. A remote attacker
could possibly use this issue to inject plaintext commands before
STARTTLS negotiation. (CVE-2021-33515)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 21.04 | noarch | dovecot-core | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-auth-lua | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-auth-lua-dbgsym | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-core-dbgsym | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-dev | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-gssapi | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-gssapi-dbgsym | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-imapd | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-imapd-dbgsym | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | dovecot-ldap | < 1:2.3.13+dfsg1-1ubuntu1.1 | UNKNOWN |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
77.0%