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

Debian GNU/Linux 8 LTS:
DLA 1675-1: python-gnupg security update
DLA 1676-1: unbound security update

Debian GNU/Linux 9:
DSA 4391-1: firefox-esr security update

DLA 1675-1: python-gnupg security update

Package : python-gnupg
Version : 0.3.6-1+deb8u1
CVE ID : CVE-2019-6690

Alexander Kjäll and Stig Palmquist discovered a vulnerability in
python-gnupg, a wrapper around GNU Privacy Guard. It was possible to
inject data through the passphrase property of the gnupg.GPG.encrypt()
and gnupg.GPG.decrypt() functions when symmetric encryption is used.
The supplied passphrase is not validated for newlines, and the library
passes --passphrase-fd=0 to the gpg executable, which expects the
passphrase on the first line of stdin, and the ciphertext to be
decrypted or plaintext to be encrypted on subsequent lines.

By supplying a passphrase containing a newline an attacker can
control/modify the ciphertext/plaintext being decrypted/encrypted.


For Debian 8 "Jessie", this problem has been fixed in version
0.3.6-1+deb8u1.

We recommend that you upgrade your python-gnupg packages.

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

DLA 1676-1: unbound security update

Package : unbound
Version : 1.4.22-3+deb8u4
CVE ID : CVE-2017-15105
Debian Bug : 887733

Ralph Dolmans and Karst Koymans found a flaw in the way unbound, a
validating, recursive, caching DNS resolver, validated
wildcard-synthesized NSEC records.

An improperly validated wildcard NSEC record could be used to prove the
non-existence (NXDOMAIN answer) of an existing wildcard record, or trick
unbound into accepting a NODATA proof.

For more information please refer to the upstream advisory at
https://unbound.net/downloads/CVE-2017-15105.txt.

For Debian 8 "Jessie", this problem has been fixed in version
1.4.22-3+deb8u4.

We recommend that you upgrade your unbound packages.

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

DSA 4391-1: firefox-esr security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4391-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
February 14, 2019 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : firefox-esr
CVE ID : CVE-2018-18356 CVE-2019-5785

Multiple security issues have been found in the Mozilla Firefox web
browser, which could potentially result in the execution of arbitrary
code.

For the stable distribution (stretch), these problems have been fixed in
version 60.5.1esr-1~deb9u1.

We recommend that you upgrade your firefox-esr packages.

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

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/