1. Ubuntu Security Notices
  2. USN-757-1

USN-757-1: Ghostscript vulnerabilities

Publication date

15 April 2009

Overview

Ghostscript vulnerabilities

Releases

Packages

Details

It was discovered that Ghostscript contained a buffer underflow in its
CCITTFax decoding filter. If a user or automated system were tricked into
opening a crafted PDF file, an attacker could cause a denial of service or
execute arbitrary code with privileges of the user invoking the program.
(CVE-2007-6725)

It was discovered that Ghostscript contained a buffer overflow in the
BaseFont writer module. If a user or automated system were tricked into
opening a crafted Postscript file, an attacker could cause a denial of
service or execute arbitrary code with privileges of the user invoking the
program. (CVE-2008-6679)

It was discovered that Ghostscript contained additional integer overflows
in its ICC color management library. If a user or automated system were
tricked into opening a crafted Postscript or PDF file, an attacker could
cause a denial of...

It was discovered that Ghostscript contained a buffer underflow in its
CCITTFax decoding filter. If a user or automated system were tricked into
opening a crafted PDF file, an attacker could cause a denial of service or
execute arbitrary code with privileges of the user invoking the program.
(CVE-2007-6725)

It was discovered that Ghostscript contained a buffer overflow in the
BaseFont writer module. If a user or automated system were tricked into
opening a crafted Postscript file, an attacker could cause a denial of
service or execute arbitrary code with privileges of the user invoking the
program. (CVE-2008-6679)

It was discovered that Ghostscript contained additional integer overflows
in its ICC color management library. If a user or automated system were
tricked into opening a crafted Postscript or PDF file, an attacker could
cause a denial of service or execute arbitrary code with privileges of the
user invoking the program. (CVE-2009-0792)

Alin Rad Pop discovered that Ghostscript contained a buffer overflow in the
jbig2dec library. If a user or automated system were tricked into opening a
crafted PDF file, an attacker could cause a denial of service or execute
arbitrary code with privileges of the user invoking the program.
(CVE-2009-0196)

USN-743-1 provided updated ghostscript and gs-gpl packages to fix two
security vulnerabilities. This update corrects the same vulnerabilities in
the gs-esp package.

Original advisory details:
It was discovered that Ghostscript contained multiple integer overflows in
its ICC color management library. If a user or automated system were
tricked into opening a crafted Postscript file, an attacker could cause a
denial of service or execute arbitrary code with privileges of the user
invoking the program. (CVE-2009-0583)

It was discovered that Ghostscript did not properly perform bounds
checking in its ICC color management library. If a user or automated
system were tricked into opening a crafted Postscript file, an attacker
could cause a denial of service or execute arbitrary code with privileges
of the user invoking the program. (CVE-2009-0584)

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
8.10 intrepid libgs8 –  8.63.dfsg.1-0ubuntu6.4
8.04 hardy libgs8 –  8.61.dfsg.1-1ubuntu3.2
6.06 dapper gs-gpl –  8.15-4ubuntu3.3
gs-esp –  8.15.2.dfsg.0ubuntu1-0ubuntu1.2

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References

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