Nekoliko sigurnosnih propusta otkriveno je u radu programskog paketa ImageMagick, a zlonamjernom korisniku omogućuju pokretanje proizvoljnog programskog koda ili izvođenje napada uskraćivanjem usluge.

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Ubuntu Security Notice USN-1435-1
May 01, 2012

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS

Summary:

ImageMagick could be made to crash or run programs as your login if it
opened a specially crafted file.

Software Description:
- imagemagick: Image manipulation programs and library

Details:

Joonas Kuorilehto and Aleksis Kauppinen discovered that ImageMagick
incorrectly handled certain ResolutionUnit tags. 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.
(CVE-2012-0247, CVE-2012-1185)

Joonas Kuorilehto and Aleksis Kauppinen discovered that ImageMagick
incorrectly handled certain IFD structures. 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-2012-0248, CVE-2012-1186)

Aleksis Kauppinen, Joonas Kuorilehto and Tuomas Parttimaa discovered that
ImageMagick incorrectly handled certain JPEG EXIF tags. 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-2012-0259)

It was discovered that ImageMagick incorrectly handled certain JPEG EXIF
tags. 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. (CVE-2012-1610)

Aleksis Kauppinen, Joonas Kuorilehto and Tuomas Parttimaa discovered that
ImageMagick incorrectly handled certain TIFF EXIF tags. 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. (CVE-2012-1798)

Update instructions:

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

Ubuntu 12.04 LTS:
  imagemagick                     8:6.6.9.7-5ubuntu3.1
  libmagick++4                    8:6.6.9.7-5ubuntu3.1

Ubuntu 11.10:
  imagemagick                     8:6.6.0.4-3ubuntu1.1
  libmagick++3                    8:6.6.0.4-3ubuntu1.1

Ubuntu 11.04:
  imagemagick                     7:6.6.2.6-1ubuntu4.1
  libmagick++3                    7:6.6.2.6-1ubuntu4.1

Ubuntu 10.04 LTS:
  imagemagick                     7:6.5.7.8-1ubuntu1.2
  libmagick++2                    7:6.5.7.8-1ubuntu1.2

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

References:
  http://www.ubuntu.com/usn/usn-1435-1
  CVE-2012-0247, CVE-2012-0248, CVE-2012-0259, CVE-2012-1185,
  CVE-2012-1186, CVE-2012-1610, CVE-2012-1798

Package Information:
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.6.9.7-5ubuntu3.1
  https://launchpad.net/ubuntu/+source/imagemagick/8:6.6.0.4-3ubuntu1.1
  https://launchpad.net/ubuntu/+source/imagemagick/7:6.6.2.6-1ubuntu4.1
  https://launchpad.net/ubuntu/+source/imagemagick/7:6.5.7.8-1ubuntu1.2