The following updates has been released for Ubuntu Linux:

USN-3699-1: zziplib vulnerabilities
zziplib could be made to crash or run programs as your login if it opened aspecially crafted file.

USN-3700-1: Exiv2 vulnerabilities
Several security issues were fixed in Exiv2.

USN-3701-1: libsoup vulnerability
libsoup could be made to crash if it received a specially crafted input.

USN-3699-1: zziplib vulnerabilities

==========================================================================
Ubuntu Security Notice USN-3699-1
July 03, 2018

zziplib vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

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

Software Description:
- zziplib: library providing read access on ZIP-archives - library

Details:

It was discovered that zziplib incorrectly handled certain malformed ZIP
files. If a user or automated system were tricked into opening a specially
crafted ZIP file, a remote attacker could cause zziplib 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 18.04 LTS:
libzzip-0-13 0.13.62-3.1ubuntu0.18.04.1

Ubuntu 17.10:
libzzip-0-13 0.13.62-3.1ubuntu0.17.10.1

Ubuntu 16.04 LTS:
libzzip-0-13 0.13.62-3ubuntu0.16.04.2

Ubuntu 14.04 LTS:
libzzip-0-13 0.13.62-2ubuntu0.2

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

References:
https://usn.ubuntu.com/usn/usn-3699-1
CVE-2018-6381, CVE-2018-6484, CVE-2018-6540, CVE-2018-6541,
CVE-2018-6869, CVE-2018-7725, CVE-2018-7726

Package Information:
https://launchpad.net/ubuntu/+source/zziplib/0.13.62-3.1ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/zziplib/0.13.62-3.1ubuntu0.17.10.1
https://launchpad.net/ubuntu/+source/zziplib/0.13.62-3ubuntu0.16.04.2
https://launchpad.net/ubuntu/+source/zziplib/0.13.62-2ubuntu0.2

USN-3700-1: Exiv2 vulnerabilities

==========================================================================
Ubuntu Security Notice USN-3700-1
July 03, 2018

exiv2 vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Exiv2.

Software Description:
- exiv2: EXIF/IPTC/XMP metadata manipulation tool

Details:

It was discovered that Exiv2 incorrectly handled certain files.
An attacker could possibly use this to cause a denial of service.
(CVE-2018-10958, CVE-2018-10998)

It was discovered that Exiv2 incorrectly handled certain PNG files.
An attacker could possibly use this to access sensitive information.
(CVE-2018-10999)

It was discovered that Exiv2 incorrectly handled certain files.
An attacker could possibly use this to execute arbitrary code.
(CVE-2018-11531)

It was discovered that Exiv2 incorrectly handled certain files.
An attacker could possibly use this to access sensitive information.
(CVE-2018-12264, CVE-2018-12265)

Update instructions:

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

Ubuntu 18.04 LTS:
  exiv2 0.25-3.1ubuntu0.18.04.1
  libexiv2-14 0.25-3.1ubuntu0.18.04.1

Ubuntu 17.10:
  exiv2 0.25-3.1ubuntu0.17.10.1
  libexiv2-14 0.25-3.1ubuntu0.17.10.1

Ubuntu 16.04 LTS:
  exiv2 0.25-2.1ubuntu16.04.2
  libexiv2-14 0.25-2.1ubuntu16.04.2

Ubuntu 14.04 LTS:
  exiv2 0.23-1ubuntu2.1
  libexiv2-12 0.23-1ubuntu2.1
In general, a standard system update will make all the necessary
changes.

References:
  https://usn.ubuntu.com/usn/usn-3700-1
  CVE-2018-10958, CVE-2018-10998, CVE-2018-10999, CVE-2018-11531,
  CVE-2018-12264, CVE-2018-12265

Package Information:
  https://launchpad.net/ubuntu/+source/exiv2/0.25-3.1ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/exiv2/0.25-3.1ubuntu0.17.10.1
  https://launchpad.net/ubuntu/+source/exiv2/0.25-2.1ubuntu16.04.2
  https://launchpad.net/ubuntu/+source/exiv2/0.23-1ubuntu2.1

USN-3701-1: libsoup vulnerability

==========================================================================
Ubuntu Security Notice USN-3701-1
July 03, 2018

libsoup2.4 vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

libsoup could be made to crash if it received a specially crafted
input.

Software Description:
- libsoup2.4: HTTP client/server library for GNOME

Details:

It was discovered that libsoup incorrectly handled certain cookie
requests. An attacker could possibly use this to cause a denial of
service.

Update instructions:

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

Ubuntu 18.04 LTS:
  libsoup2.4-1 2.62.1-1ubuntu0.1

Ubuntu 17.10:
  libsoup2.4-1 2.60.1-1ubuntu0.1

Ubuntu 16.04 LTS:
  libsoup2.4-1 2.52.2-1ubuntu0.3

Ubuntu 14.04 LTS:
  libsoup2.4-1 2.44.2-1ubuntu2.3

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

References:
  https://usn.ubuntu.com/usn/usn-3701-1
  CVE-2018-12910

Package Information:
  https://launchpad.net/ubuntu/+source/libsoup2.4/2.62.1-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libsoup2.4/2.60.1-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libsoup2.4/2.52.2-1ubuntu0.3
  https://launchpad.net/ubuntu/+source/libsoup2.4/2.44.2-1ubuntu2.3