CVE-2020-8794
Published: 25 February 2020
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.
Priority
High
CVSS 3 base score: 9.8
Status
| Package | Release | Status |
|---|---|---|
|
opensmtpd Launchpad, Ubuntu, Debian |
Upstream |
Released
(6.6.4p1-1)
|
| Ubuntu 21.10 (Impish Indri) |
Released
(6.6.4p1-1)
|
|
| Ubuntu 21.04 (Hirsute Hippo) |
Released
(6.6.4p1-1)
|
|
| Ubuntu 20.04 LTS (Focal Fossa) |
Released
(6.6.4p1-1)
|
|
| Ubuntu 18.04 LTS (Bionic Beaver) |
Released
(6.0.3p1-1ubuntu0.2)
|
|
| Ubuntu 16.04 ESM (Xenial Xerus) |
Ignored
(end of standard support, was needed)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was not-affected [code not present])
|