USN-757-1: Ghostscript vulnerabilities

15 April 2009

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 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

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

Ubuntu 8.10
Ubuntu 8.04
Ubuntu 6.06

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

Related notices