The following updates has been released for Debian GNU/Linux:

DSA 4055-1: heimdal security update
DSA 4056-1: nova security update
DSA 4057-1: erlang security update

DSA 4055-1: heimdal security update

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Debian Security Advisory DSA-4055-1 security@debian.org
https://www.debian.org/security/ Sebastien Delafond
December 07, 2017 https://www.debian.org/security/faq
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Package : heimdal
CVE ID : CVE-2017-17439
Debian Bug : 878144

Michael Eder and Thomas Kittel discovered that Heimdal, an
implementation of Kerberos 5 that aims to be compatible with MIT
Kerberos, did not correctly handle ASN.1 data. This would allow an
unauthenticated remote attacker to cause a denial of service (crash of
the KDC daemon) by sending maliciously crafted packets.

For the stable distribution (stretch), this problem has been fixed in
version 7.1.0+dfsg-13+deb9u2.

We recommend that you upgrade your heimdal packages.

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

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/

DSA 4056-1: nova security update

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Debian Security Advisory DSA-4056-1 security@debian.org
https://www.debian.org/security/ Sebastien Delafond
December 07, 2017 https://www.debian.org/security/faq
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Package : nova
CVE ID : CVE-2017-16239
Debian Bug : 882009

George Shuklin from servers.com discovered that Nova, a cloud
computing fabric controller, did not correctly enforce its image- or
hosts-filters. This allowed an authenticated user to bypass those
filters by simply rebuilding an instance.

For the stable distribution (stretch), this problem has been fixed in
version 2:14.0.0-4+deb9u1.

We recommend that you upgrade your nova packages.

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

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/

DSA 4057-1: erlang security update

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Debian Security Advisory DSA-4057-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
December 08, 2017 https://www.debian.org/security/faq
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Package : erlang
CVE ID : CVE-2017-1000385

It was discovered that the TLS server in Erlang is vulnerable to an
adaptive chosen ciphertext attack against RSA keys.

For the oldstable distribution (jessie), this problem has been fixed
in version 1:17.3-dfsg-4+deb8u2.

For the stable distribution (stretch), this problem has been fixed in
version 1:19.2.1+dfsg-2+deb9u1.

We recommend that you upgrade your erlang packages.

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

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/