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Ubuntu Security Notice USN-4034-1

Ubuntu Security Notice USN-4034-1
Posted Jun 25, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4034-1 - It was discovered that ImageMagick incorrectly handled certain malformed image files. If a user or automated system using ImageMagick were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or possibly execute code with the privileges of the user invoking the program. Due to a large number of issues discovered in GhostScript that prevent it from being used by ImageMagick safely, the update for Ubuntu 18.10 and Ubuntu 19.04 includes a default policy change that disables support for the Postscript and PDF formats in ImageMagick. This policy can be overridden if necessary by using an alternate ImageMagick policy configuration. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2017-12805, CVE-2018-16323, CVE-2018-16645, CVE-2018-18023, CVE-2018-20467, CVE-2019-11470, CVE-2019-7175, CVE-2019-7398
MD5 | f885608b4eef03eae7ba46c46019bdce

Ubuntu Security Notice USN-4034-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4034-1
June 25, 2019

imagemagick vulnerabilities
==========================================================================

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

- Ubuntu 19.04
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in ImageMagick.

Software Description:
- imagemagick: Image manipulation programs and library

Details:

It was discovered that ImageMagick incorrectly handled certain malformed
image files. If a user or automated system using ImageMagick were tricked
into opening a specially crafted image, an attacker could exploit this to
cause a denial of service or possibly execute code with the privileges of
the user invoking the program.

Due to a large number of issues discovered in GhostScript that prevent it
from being used by ImageMagick safely, the update for Ubuntu 18.10 and
Ubuntu 19.04 includes a default policy change that disables support for the
Postscript and PDF formats in ImageMagick. This policy can be overridden if
necessary by using an alternate ImageMagick policy configuration.

Update instructions:

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

Ubuntu 19.04:
imagemagick 8:6.9.10.14+dfsg-7ubuntu2.2
imagemagick-6.q16 8:6.9.10.14+dfsg-7ubuntu2.2
libmagick++-6.q16-8 8:6.9.10.14+dfsg-7ubuntu2.2
libmagickcore-6.q16-6 8:6.9.10.14+dfsg-7ubuntu2.2
libmagickcore-6.q16-6-extra 8:6.9.10.14+dfsg-7ubuntu2.2

Ubuntu 18.10:
imagemagick 8:6.9.10.8+dfsg-1ubuntu2.2
imagemagick-6.q16 8:6.9.10.8+dfsg-1ubuntu2.2
libmagick++-6.q16-8 8:6.9.10.8+dfsg-1ubuntu2.2
libmagickcore-6.q16-6 8:6.9.10.8+dfsg-1ubuntu2.2
libmagickcore-6.q16-6-extra 8:6.9.10.8+dfsg-1ubuntu2.2

Ubuntu 18.04 LTS:
imagemagick 8:6.9.7.4+dfsg-16ubuntu6.7
imagemagick-6.q16 8:6.9.7.4+dfsg-16ubuntu6.7
libmagick++-6.q16-7 8:6.9.7.4+dfsg-16ubuntu6.7
libmagickcore-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.7
libmagickcore-6.q16-3-extra 8:6.9.7.4+dfsg-16ubuntu6.7

Ubuntu 16.04 LTS:
imagemagick 8:6.8.9.9-7ubuntu5.14
imagemagick-6.q16 8:6.8.9.9-7ubuntu5.14
libmagick++-6.q16-5v5 8:6.8.9.9-7ubuntu5.14
libmagickcore-6.q16-2 8:6.8.9.9-7ubuntu5.14
libmagickcore-6.q16-2-extra 8:6.8.9.9-7ubuntu5.14

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

References:
https://usn.ubuntu.com/4034-1
CVE-2017-12805, CVE-2017-12806, CVE-2018-14434, CVE-2018-15607,
CVE-2018-16323, CVE-2018-16412, CVE-2018-16413, CVE-2018-16644,
CVE-2018-16645, CVE-2018-17965, CVE-2018-17966, CVE-2018-18016,
CVE-2018-18023, CVE-2018-18024, CVE-2018-18025, CVE-2018-18544,
CVE-2018-20467, CVE-2019-10131, CVE-2019-10649, CVE-2019-10650,
CVE-2019-11470, CVE-2019-11472, CVE-2019-11597, CVE-2019-11598,
CVE-2019-7175, CVE-2019-7395, CVE-2019-7396, CVE-2019-7397,
CVE-2019-7398, CVE-2019-9956

Package Information:
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.10.14+dfsg-7ubuntu2.2
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.10.8+dfsg-1ubuntu2.2
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.7.4+dfsg-16ubuntu6.7
https://launchpad.net/ubuntu/+source/imagemagick/8:6.8.9.9-7ubuntu5.14
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