The following updates has been released for both Debian GNU/Linux 8 and 9:

DSA 3969-1: xen security update
DSA 3970-1: emacs24 security update
DSA 3971-1: tcpdump security update

DSA 3969-1: xen security update

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Debian Security Advisory DSA-3969-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
September 12, 2017 https://www.debian.org/security/faq
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Package : xen
CVE ID : CVE-2017-10912 CVE-2017-10913 CVE-2017-10914
CVE-2017-10915 CVE-2017-10916 CVE-2017-10917
CVE-2017-10918 CVE-2017-10919 CVE-2017-10920
CVE-2017-10921 CVE-2017-10922 CVE-2017-12135
CVE-2017-12136 CVE-2017-12137 CVE-2017-12855

Multiple vulnerabilities have been discovered in the Xen hypervisor:

CVE-2017-10912

Jann Horn discovered that incorrectly handling of page transfers might
result in privilege escalation.

CVE-2017-10913 / CVE-2017-10914

Jann Horn discovered that race conditions in grant handling might
result in information leaks or privilege escalation.

CVE-2017-10915

Andrew Cooper discovered that incorrect reference counting with
shadow paging might result in privilege escalation.

CVE-2017-10916

Andrew Cooper discovered an information leak in the handling
of the the Memory Protection Extensions (MPX) and Protection
Key (PKU) CPU features. This only affects Debian stretch.

CVE-2017-10917

Ankur Arora discovered a NULL pointer dereference in event
polling, resulting in denial of service.

CVE-2017-10918

Julien Grall discovered that incorrect error handling in
physical-to-machine memory mappings may result in privilege
escalation, denial of service or an information leak.

CVE-2017-10919

Julien Grall discovered that that incorrect handling of
virtual interrupt injection on ARM systems may result in
denial of service.

CVE-2017-10920 / CVE-2017-10921 / CVE-2017-10922

Jan Beulich discovered multiple places where reference
counting on grant table operations was incorrect, resulting
in potential privilege escalation

CVE-2017-12135

Jan Beulich found multiple problems in the handling of
transitive grants which could result in denial of service
and potentially privilege escalation.

CVE-2017-12136

Ian Jackson discovered that race conditions in the allocator
for grant mappings may result in denial of service or privilege
escalation. This only affects Debian stretch.

CVE-2017-12137

Andrew Cooper discovered that incorrect validation of
grants may result in privilege escalation.

CVE-2017-12855

Jan Beulich discovered that incorrect grant status handling, thus
incorrectly informing the guest that the grant is no longer in use.

XSA-235 (no CVE yet)

Wei Liu discovered that incorrect locking of add-to-physmap
operations on ARM may result in denial of service.

For the oldstable distribution (jessie), these problems have been fixed
in version 4.4.1-9+deb8u10.

For the stable distribution (stretch), these problems have been fixed in
version 4.8.1-1+deb9u3.

We recommend that you upgrade your xen packages.

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 3970-1: emacs24 security update

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Debian Security Advisory DSA-3970-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
September 12, 2017 https://www.debian.org/security/faq
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Package : emacs24
CVE ID : not yet available

Charles A. Roelli discovered that Emacs is vulnerable to arbitrary code
execution when rendering text/enriched MIME data (e.g. when using
Emacs-based mail clients).

For the oldstable distribution (jessie), this problem has been fixed
in version 24.4+1-5+deb8u1.

For the stable distribution (stretch), this problem has been fixed in
version 24.5+1-11+deb9u1.

We recommend that you upgrade your emacs24 packages.

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 3971-1: tcpdump security update

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Debian Security Advisory DSA-3971-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
September 13, 2017 https://www.debian.org/security/faq
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Package : tcpdump
CVE ID : CVE-2017-11108 CVE-2017-11541 CVE-2017-11542 CVE-2017-11543
CVE-2017-12893 CVE-2017-12894 CVE-2017-12895 CVE-2017-12896
CVE-2017-12897 CVE-2017-12898 CVE-2017-12899 CVE-2017-12900
CVE-2017-12901 CVE-2017-12902 CVE-2017-12985 CVE-2017-12986
CVE-2017-12987 CVE-2017-12988 CVE-2017-12989 CVE-2017-12990
CVE-2017-12991 CVE-2017-12992 CVE-2017-12993 CVE-2017-12994
CVE-2017-12995 CVE-2017-12996 CVE-2017-12997 CVE-2017-12998
CVE-2017-12999 CVE-2017-13000 CVE-2017-13001 CVE-2017-13002
CVE-2017-13003 CVE-2017-13004 CVE-2017-13005 CVE-2017-13006
CVE-2017-13007 CVE-2017-13008 CVE-2017-13009 CVE-2017-13010
CVE-2017-13011 CVE-2017-13012 CVE-2017-13013 CVE-2017-13014
CVE-2017-13015 CVE-2017-13016 CVE-2017-13017 CVE-2017-13018
CVE-2017-13019 CVE-2017-13020 CVE-2017-13021 CVE-2017-13022
CVE-2017-13023 CVE-2017-13024 CVE-2017-13025 CVE-2017-13026
CVE-2017-13027 CVE-2017-13028 CVE-2017-13029 CVE-2017-13030
CVE-2017-13031 CVE-2017-13032 CVE-2017-13033 CVE-2017-13034
CVE-2017-13035 CVE-2017-13036 CVE-2017-13037 CVE-2017-13038
CVE-2017-13039 CVE-2017-13040 CVE-2017-13041 CVE-2017-13042
CVE-2017-13043 CVE-2017-13044 CVE-2017-13045 CVE-2017-13046
CVE-2017-13047 CVE-2017-13048 CVE-2017-13049 CVE-2017-13050
CVE-2017-13051 CVE-2017-13052 CVE-2017-13053 CVE-2017-13054
CVE-2017-13055 CVE-2017-13687 CVE-2017-13688 CVE-2017-13689
CVE-2017-13690 CVE-2017-13725
Debian Bug : 867718 873804 873805 873806

Several vulnerabilities have been discovered in tcpdump, a command-line
network traffic analyzer. These vulnerabilities might result in denial
of service or, potentially, execution of arbitrary code.

For the oldstable distribution (jessie), these problems have been fixed
in version 4.9.2-1~deb8u1.

For the stable distribution (stretch), these problems have been fixed in
version 4.9.2-1~deb9u1.

For the testing distribution (buster), these problems have been fixed
in version 4.9.2-1 or earlier versions.

For the unstable distribution (sid), these problems have been fixed in
version 4.9.2-1 or earlier versions.

We recommend that you upgrade your tcpdump packages.

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/