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Ubuntu Security Notice USN-1317-1

Ubuntu Security Notice USN-1317-1
Posted Jan 4, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1317-1 - It was discovered that Ghostscript did not correctly handle memory allocation when parsing certain malformed JPEG-2000 images. If a user or automated system were tricked into opening a specially crafted image, an attacker could cause a denial of service and possibly execute arbitrary code with user privileges. It was discovered that Ghostscript did not correctly handle certain formatting operations when parsing JPEG-2000 images. If a user or automated system were tricked into opening a specially crafted image, an attacker could cause a denial of service and possibly execute arbitrary code with user privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2008-3520, CVE-2008-3522, CVE-2009-3743, CVE-2010-4054, CVE-2011-4516, CVE-2011-4517
SHA-256 | 1fcf7293472e791a0923b72c104ac27add330ec563ccfa26ed3174c631ebbd57

Ubuntu Security Notice USN-1317-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1317-1
January 04, 2012

ghostscript vulnerabilities
==========================================================================

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

- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

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

Software Description:
- ghostscript: The GPL Ghostscript PostScript/PDF interpreter

Details:

It was discovered that Ghostscript did not correctly handle memory
allocation when parsing certain malformed JPEG-2000 images. If a user or
automated system were tricked into opening a specially crafted image, an
attacker could cause a denial of service and possibly execute arbitrary
code with user privileges. (CVE-2008-3520)

It was discovered that Ghostscript did not correctly handle certain
formatting operations when parsing JPEG-2000 images. If a user or automated
system were tricked into opening a specially crafted image, an attacker
could cause a denial of service and possibly execute arbitrary code with
user privileges. (CVE-2008-3522)

It was discovered that Ghostscript incorrectly handled certain malformed
TrueType fonts. If a user or automated system were tricked into opening a
document containing a specially crafted font, an attacker could cause a
denial of service and possibly execute arbitrary code with user privileges.
This issue only affected Ubuntu 8.04 LTS. (CVE-2009-3743)

It was discovered that Ghostscript incorrectly handled certain malformed
Type 2 fonts. If a user or automated system were tricked into opening a
document containing a specially crafted font, an attacker could cause a
denial of service and possibly execute arbitrary code with user privileges.
This issue only affected Ubuntu 8.04 LTS. (CVE-2010-4054)

Jonathan Foote discovered that Ghostscript incorrectly handled certain
malformed JPEG-2000 image files. If a user or automated system were tricked
into opening a specially crafted JPEG-2000 image file, an attacker could
cause Ghostscript to crash or possibly execute arbitrary code with user
privileges. (CVE-2011-4516, CVE-2011-4517)

Update instructions:

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

Ubuntu 10.10:
libgs8 8.71.dfsg.2-0ubuntu7.1

Ubuntu 10.04 LTS:
libgs8 8.71.dfsg.1-0ubuntu5.4

Ubuntu 8.04 LTS:
libgs8 8.61.dfsg.1-1ubuntu3.4

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

References:
http://www.ubuntu.com/usn/usn-1317-1
CVE-2008-3520, CVE-2008-3522, CVE-2009-3743, CVE-2010-4054,
CVE-2011-4516, CVE-2011-4517

Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/8.71.dfsg.2-0ubuntu7.1
https://launchpad.net/ubuntu/+source/ghostscript/8.71.dfsg.1-0ubuntu5.4
https://launchpad.net/ubuntu/+source/ghostscript/8.61.dfsg.1-1ubuntu3.4


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