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Ubuntu Security Notice USN-5158-1

Ubuntu Security Notice USN-5158-1
Posted Nov 30, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5158-1 - It was discovered that ImageMagick incorrectly handled certain values when processing visual effects based image files. By tricking a user into opening a specially crafted image file, an attacker could crash the application causing a denial of service. It was discovered that ImageMagick incorrectly handled certain values when performing resampling operations. By tricking a user into opening a specially crafted image file, an attacker could crash the application causing a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2021-20244, CVE-2021-20246, CVE-2021-20309, CVE-2021-20312, CVE-2021-20313
SHA-256 | 7dd05b4d88d156afa943ee55680e72f46fa13f248270bcdc4a538a3af674881f

Ubuntu Security Notice USN-5158-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5158-1
November 29, 2021

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

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

- Ubuntu 18.04 LTS
- 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:

It was discovered that ImageMagick incorrectly handled certain values
when processing visual effects based image files. By tricking a user into
opening a specially crafted image file, an attacker could crash the
application causing a denial of service. (CVE-2021-20244)

It was discovered that ImageMagick incorrectly handled certain values
when performing resampling operations. By tricking a user into opening
a specially crafted image file, an attacker could crash the application
causing a denial of service. (CVE-2021-20246)

It was discovered that ImageMagick incorrectly handled certain values
when processing visual effects based image files. By tricking a user into
opening a specially crafted image file, an attacker could crash the
application causing a denial of service (CVE-2021-20309)

It was discovered that ImageMagick incorrectly handled certain values
when processing thumbnail image data. By tricking a user into opening
a specially crafted image file, an attacker could crash the application
causing a denial of service. (CVE-2021-20312)

It was discovered that ImageMagick incorrectly handled memory cleanup
when performing certain cryptographic operations. Under certain conditions
sensitive cryptographic information could be disclosed. (CVE-2021-20313)

Update instructions:

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

Ubuntu 18.04 LTS:
libmagick++-6.q16-7 8:6.9.7.4+dfsg-16ubuntu6.12

Ubuntu 16.04 ESM:
libmagick++-6.q16-5v5 8:6.8.9.9-7ubuntu5.16+esm1

Ubuntu 14.04 ESM:
libmagick++5 8:6.7.7.10-6ubuntu3.13+esm1

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

References:
https://ubuntu.com/security/notices/USN-5158-1
CVE-2021-20244, CVE-2021-20246, CVE-2021-20309, CVE-2021-20312,
CVE-2021-20313

Package Information:
https://launchpad.net/ubuntu/+source/imagemagick/8:6.9.7.4+dfsg-16ubuntu6.12
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