Severity

Medium

Vendor

Imagemagick, Canonical Ubuntu

Versions Affected

Canonical Ubuntu 14.04 LTS

Description

Nikolay Ermishkin and Stewie discovered that ImageMagick incorrectly sanitized untrusted input. A remote attacker could use these issues to execute arbitrary code. These issues are known as ‘ImageTragick’. This update disables problematic coders via the /etc/ImageMagick-6/policy.xml configuration file. In certain environments the coders may need to be manually re-enabled after making sure that ImageMagick does not process untrusted input. (CVE-2016-3714, CVE-2016-3715, CVE-2016-3716, CVE-2016-3717, CVE-2016-3718)

Bob Friesenhahn discovered that ImageMagick allowed injecting commands via an image file or filename. A remote attacker could use this issue to execute arbitrary code. (CVE-2016-5118)

Affected Products and Versions

Severity is medium unless otherwise noted.

• All versions of Cloud Foundry cflinuxfs2 prior to v.1.65.0

Mitigation

Users of affected versions should apply the following mitigation:

• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 v.1.65.0 or later versions

Credit

Stewie, Nikolay Ermishkin, Bob Friesenhahn

References

• http://www.ubuntu.com/usn/usn-2990-1/
• http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-3714.html
• http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-3715.html
• http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-3716.html
• http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-3717.html
• http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-3718.html
• http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-5118.html