Ubuntu.comUB:CVE-2020-8794CVE-2020-8794
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.937 High
EPSS
Percentile
99.1%
OpenSMTPD before 6.6.4 allows remote code execution because of an
out-of-bounds read in mta_io in mta_session.c for multi-line replies.
Although this vulnerability affects the client side of OpenSMTPD, it is
possible to attack a server because the server code launches the client
code during bounce handling.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | opensmtpd | < 6.0.3p1-1ubuntu0.2 | UNKNOWN |
| ubuntu | 19.10 | noarch | opensmtpd | < 6.0.3p1-6ubuntu0.2 | UNKNOWN |
| ubuntu | 20.04 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 20.10 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 21.04 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 21.10 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 22.04 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 22.10 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 23.04 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
| ubuntu | 23.10 | noarch | opensmtpd | < 6.6.4p1-1 | UNKNOWN |
Related
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.937 High
EPSS
Percentile
99.1%