==========================================================================
Ubuntu Security Notice USN-4670-1
December 15, 2020

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

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

– Ubuntu 20.10
– Ubuntu 20.04 LTS
– 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 specially
crafted 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 other unspecified impact. This issue
only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.10.
(CVE-2019-19948, CVE-2019-19949)

It was discovered that ImageMagick incorrectly handled certain specially
crafted 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. (CVE-2020-27560)

Update instructions:

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

Ubuntu 20.10:
imagemagick 8:6.9.10.23+dfsg-2.1ubuntu13.1
imagemagick-6.q16 8:6.9.10.23+dfsg-2.1ubuntu13.1
imagemagick-6.q16hdri 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagick++-6.q16-8 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagick++-6.q16hdri-8 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagickcore-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagickcore-6.q16-6-extra 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagickcore-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagickcore-6.q16hdri-6-extra 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagickwand-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu13.1
libmagickwand-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu13.1

Ubuntu 20.04 LTS:
imagemagick 8:6.9.10.23+dfsg-2.1ubuntu11.2
imagemagick-6.q16 8:6.9.10.23+dfsg-2.1ubuntu11.2
imagemagick-6.q16hdri 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagick++-6.q16-8 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagick++-6.q16hdri-8 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagickcore-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagickcore-6.q16-6-extra 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagickcore-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagickcore-6.q16hdri-6-extra 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagickwand-6.q16-6 8:6.9.10.23+dfsg-2.1ubuntu11.2
libmagickwand-6.q16hdri-6 8:6.9.10.23+dfsg-2.1ubuntu11.2

Ubuntu 18.04 LTS:
imagemagick 8:6.9.7.4+dfsg-16ubuntu6.9
imagemagick-6.q16 8:6.9.7.4+dfsg-16ubuntu6.9
imagemagick-6.q16hdri 8:6.9.7.4+dfsg-16ubuntu6.9
libmagick++-6.q16-7 8:6.9.7.4+dfsg-16ubuntu6.9
libmagick++-6.q16hdri-7 8:6.9.7.4+dfsg-16ubuntu6.9
libmagickcore-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.9
libmagickcore-6.q16-3-extra 8:6.9.7.4+dfsg-16ubuntu6.9
libmagickcore-6.q16hdri-3 8:6.9.7.4+dfsg-16ubuntu6.9
libmagickcore-6.q16hdri-3-extra 8:6.9.7.4+dfsg-16ubuntu6.9
libmagickwand-6.q16-3 8:6.9.7.4+dfsg-16ubuntu6.9
libmagickwand-6.q16hdri-3 8:6.9.7.4+dfsg-16ubuntu6.9

Ubuntu 16.04 LTS:
imagemagick 8:6.8.9.9-7ubuntu5.16
imagemagick-6.q16 8:6.8.9.9-7ubuntu5.16
libmagick++-6.q16-5v5 8:6.8.9.9-7ubuntu5.16
libmagickcore-6.q16-2 8:6.8.9.9-7ubuntu5.16
libmagickcore-6.q16-2-extra 8:6.8.9.9-7ubuntu5.16
libmagickwand-6.q16-2 8:6.8.9.9-7ubuntu5.16

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

References:
https://usn.ubuntu.com/4670-1
CVE-2019-19948, CVE-2019-19949, CVE-2020-27560

Package Information:
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.10.23+dfsg-2.1ubuntu13.1
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.10.23+dfsg-2.1ubuntu11.2
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.7.4+dfsg-16ubuntu6.9
https://launchpad.net/ubuntu/+source/imagemagick/8:6.8.9.9-7ubuntu5.16

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