Ubuntu.comUB:CVE-2021-38502CVE-2021-38502
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.002 Low
EPSS
Percentile
58.0%
Thunderbird ignored the configuration to require STARTTLS security for an
SMTP connection. A MITM could perform a downgrade attack to intercept
transmitted messages, or could take control of the authenticated session to
execute SMTP commands chosen by the MITM. If an unprotected authentication
method was configured, the MITM could obtain the authentication
credentials, too. This vulnerability affects Thunderbird < 91.2.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | thunderbird | < 1:91.5.0+build1-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 20.04 | noarch | thunderbird | < 1:91.5.0+build1-0ubuntu0.20.04.1 | UNKNOWN |
| ubuntu | 21.10 | noarch | thunderbird | < 1:91.3.1+build1-0ubuntu0.21.10.1 | UNKNOWN |
| ubuntu | 22.04 | noarch | thunderbird | < 1:91.3.1+build1-0ubuntu1 | UNKNOWN |
| ubuntu | 22.10 | noarch | thunderbird | < 1:91.3.1+build1-0ubuntu1 | UNKNOWN |
| ubuntu | 23.04 | noarch | thunderbird | < 1:91.3.1+build1-0ubuntu1 | UNKNOWN |
Related
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.002 Low
EPSS
Percentile
58.0%