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

DSA 4336-1: ghostscript security update
DSA 4337-1: thunderbird security update

DSA 4336-1: ghostscript security update

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Debian Security Advisory DSA-4336-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
November 10, 2018 https://www.debian.org/security/faq
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Package : ghostscript
CVE ID : CVE-2018-11645 CVE-2018-17961 CVE-2018-18073 CVE-2018-18284
Debian Bug : 910678 910758 911175

Several vulnerabilities were discovered in Ghostscript, the GPL
PostScript/PDF interpreter, which may result in denial of service,
disclosure of existence and size of arbitrary files, or the execution of
arbitrary code if a malformed Postscript file is processed (despite the
dSAFER sandbox being enabled).

This update rebases ghostscript for stretch to the upstream version 9.25
which includes additional non-security related changes.

For the stable distribution (stretch), these problems have been fixed in
version 9.25~dfsg-0+deb9u1.

We recommend that you upgrade your ghostscript packages.

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

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 4337-1: thunderbird security update

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Debian Security Advisory DSA-4337-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
November 10, 2018 https://www.debian.org/security/faq
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Package : thunderbird
CVE ID : CVE-2018-12389 CVE-2018-12390 CVE-2018-12392
CVE-2018-12393

Multiple security issues have been found in Thunderbird: Multiple memory
safety errors may lead to the execution of arbitrary code or denial of
service.

For the stable distribution (stretch), these problems have been fixed in
version 1:60.3.0-1~deb9u1.

We recommend that you upgrade your thunderbird packages.

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

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/