[DLA 798-1] pdns security update

Package : pdns
Version : 3.1-4.1+deb7u3
CVE ID : CVE-2016-2120 CVE-2016-7068 CVE-2016-7072 CVE-2016-7073
CVE-2016-7074


Multiple vulnerabilities have been discovered in pdns, an authoritative
DNS server. The Common Vulnerabilities and Exposures project identifies
the following problems:

CVE-2016-2120

Mathieu Lafon discovered that pdns does not properly validate
records in zones. An authorized user can take advantage of this flaw
to crash server by inserting a specially crafted record in a zone
under their control and then sending a DNS query for that record.

CVE-2016-7068

Florian Heinz and Martin Kluge reported that pdns parses all records
present in a query regardless of whether they are needed or even
legitimate, allowing a remote, unauthenticated attacker to cause an
abnormal CPU usage load on the pdns server, resulting in a partial
denial of service if the system becomes overloaded.

CVE-2016-7072

Mongo discovered that the webserver in pdns is susceptible to a
denial-of-service vulnerability. A remote, unauthenticated attacker
to cause a denial of service by opening a large number of f TCP
connections to the web server.

CVE-2016-7073 / CVE-2016-7074

Mongo discovered that pdns does not sufficiently validate TSIG
signatures, allowing an attacker in position of man-in-the-middle to
alter the content of an AXFR.

For Debian 7 "Wheezy", these problems have been fixed in version
3.1-4.1+deb7u3.

We recommend that you upgrade your pdns 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 3771-1] firefox-esr security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3771-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
January 25, 2017 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : firefox-esr
CVE ID : CVE-2017-5373 CVE-2017-5375 CVE-2017-5376 CVE-2017-5378
CVE-2017-5380 CVE-2017-5383 CVE-2017-5386 CVE-2017-5390
CVE-2017-5396

Multiple security issues have been found in the Mozilla Firefox web
browser: Memory safety errors, use-after-frees and other implementation
errors may lead to the execution of arbitrary code, information
disclosure or privilege escalation.

For the stable distribution (jessie), these problems have been fixed in
version 45.7.0esr-1~deb8u1.

For the unstable distribution (sid), these problems have been fixed in
version 45.7.0esr-1 of firefox-esr and version 51.0-1 of firefox.

We recommend that you upgrade your firefox-esr 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/