[IT-SecNots] [SECURITY] [DSA 4611-1] opensmtpd security update

[Moritz Muehlenhoff <jmm AT debian.org>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4611-1                   security AT debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
January 29, 2020                      https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : opensmtpd
CVE ID         : CVE-2020-7247
Debian Bug     : 950121

Qualys discovered that the OpenSMTPD SMTP server performed insufficient
validation of email addresses which could result in the execution of
arbitrary commands as root. In addition this update fixes a denial of
service by triggering an opportunistic TLS downgrade.

For the oldstable distribution (stretch), these problems have been fixed
in version 6.0.2p1-2+deb9u2.

For the stable distribution (buster), these problems have been fixed in
version 6.0.3p1-5+deb10u3. This update also includes non-security
bugfixes which were already lined up for the Buster 10.3 point release.

We recommend that you upgrade your opensmtpd packages.

For the detailed security status of opensmtpd please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/opensmtpd

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce AT lists.debian.org
-----BEGIN PGP SIGNATURE-----
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=tabP
-----END PGP SIGNATURE-----