An ImageMagick security update has been released for Ubuntu Linux 14.04 ESM and 16.04 ESM.

USN-5855-4: ImageMagick vulnerabilities

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Ubuntu Security Notice USN-5855-4
April 17, 2023

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

Several security issues were fixed in ImageMagick.

Software Description:
- imagemagick: Image manipulation programs and library

Details:

USN-5855-1 fixed vulnerabilities in ImageMagick. This update provides the
corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that ImageMagick incorrectly handled certain PNG images.
If a user or automated system were tricked into opening a specially crafted
PNG file, an attacker could use this issue to cause ImageMagick to stop
responding, resulting in a denial of service, or possibly obtain the
contents of arbitrary files by including them into images.

Update instructions:

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

Ubuntu 16.04 ESM:
imagemagick 8:6.8.9.9-7ubuntu5.16+esm7
imagemagick-6.q16 8:6.8.9.9-7ubuntu5.16+esm7
libmagick++-6.q16-5v5 8:6.8.9.9-7ubuntu5.16+esm7
libmagickcore-6.q16-2 8:6.8.9.9-7ubuntu5.16+esm7
libmagickcore-6.q16-2-extra 8:6.8.9.9-7ubuntu5.16+esm7

Ubuntu 14.04 ESM:
imagemagick 8:6.7.7.10-6ubuntu3.13+esm5
libmagick++5 8:6.7.7.10-6ubuntu3.13+esm5
libmagickcore5 8:6.7.7.10-6ubuntu3.13+esm5
libmagickcore5-extra 8:6.7.7.10-6ubuntu3.13+esm5

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

References:
https://ubuntu.com/security/notices/USN-5855-4
https://ubuntu.com/security/notices/USN-5855-1
CVE-2022-44267, CVE-2022-44268