The following updates has been released for Ubuntu Linux:

USN-3491-1: ldns vulnerabilities
USN-3492-1: LibRaw vulnerabilities

USN-3491-1: ldns vulnerabilities

==========================================================================
Ubuntu Security Notice USN-3491-1
November 22, 2017

ldns vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in ldns.

Software Description:
- ldns: ldns library for DNS programming

Details:

Leon Weber discovered that the ldns-keygen tool incorrectly set permissions
on private keys. A local attacker could possibly use this issue to obtain
generated private keys. This issue only applied to Ubuntu 14.04 LTS.
(CVE-2014-3209)

Stephan Zeisberg discovered that ldns incorrectly handled memory when
processing data. A remote attacker could use this issue to cause ldns to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2017-1000231, CVE-2017-1000232)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.10:
libldns2 1.7.0-1ubuntu1.17.10.1

Ubuntu 17.04:
libldns2 1.7.0-1ubuntu1.17.04.1

Ubuntu 16.04 LTS:
libldns1 1.6.17-8ubuntu0.1

Ubuntu 14.04 LTS:
libldns1 1.6.17-1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3491-1
CVE-2014-3209, CVE-2017-1000231, CVE-2017-1000232

Package Information:
https://launchpad.net/ubuntu/+source/ldns/1.7.0-1ubuntu1.17.10.1
https://launchpad.net/ubuntu/+source/ldns/1.7.0-1ubuntu1.17.04.1
https://launchpad.net/ubuntu/+source/ldns/1.6.17-8ubuntu0.1
https://launchpad.net/ubuntu/+source/ldns/1.6.17-1ubuntu0.1

USN-3492-1: LibRaw vulnerabilities

==========================================================================
Ubuntu Security Notice USN-3492-1
November 22, 2017

libraw vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

LibRaw could be made to crash or run programs as your login if it opened a
specially crafted file.

Software Description:
- libraw: raw image decoder library

Details:

It was discovered that LibRaw incorrectly handled photo files. If a user or
automated system were tricked into processing a specially crafted photo
file, a remote attacker could cause applications linked against LibRaw
to crash, resulting in a denial of service, or possibly execute arbitrary
code

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.10:
libraw16 0.18.2-2ubuntu0.1

Ubuntu 17.04:
libraw16 0.18.1-1ubuntu0.1

Ubuntu 16.04 LTS:
libraw15 0.17.1-1ubuntu0.1

Ubuntu 14.04 LTS:
libraw9 0.15.4-1ubuntu0.1

After a standard system update you need to restart your session to make
all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3492-1
CVE-2015-3885, CVE-2015-8366, CVE-2015-8367, CVE-2017-13735,
CVE-2017-14265, CVE-2017-14348, CVE-2017-14608, CVE-2017-6886,
CVE-2017-6887

Package Information:
https://launchpad.net/ubuntu/+source/libraw/0.18.2-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libraw/0.18.1-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libraw/0.17.1-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libraw/0.15.4-1ubuntu0.1