This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2020-8794 →

DEBIAN-CVE-2020-8794

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 opensmtpd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.4p1-1"}]}]

Debian:13 opensmtpd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.4p1-1"}]}]

Debian:14 opensmtpd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.4p1-1"}]}]

References

advisory security-tracker.debian.org