Ubuntu Security Notice USN-961-1 July 13, 2010
ghostscript vulnerabilities
CVE-2009-4270, CVE-2009-4897, CVE-2010-1628, CVE-2010-1869
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A security issue affects the following Ubuntu releases:
Ubuntu 8.04 LTS
Ubuntu 9.04
Ubuntu 9.10
Ubuntu 10.04 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 8.04 LTS:
libgs8 8.61.dfsg.1-1ubuntu3.3
Ubuntu 9.04:
libgs8 8.64.dfsg.1-0ubuntu8.1
Ubuntu 9.10:
libgs8 8.70.dfsg.1-0ubuntu3.1
Ubuntu 10.04 LTS:
libgs8 8.71.dfsg.1-0ubuntu5.2
In general, a standard system update will make all the necessary changes.
Details follow:
David Srbecky discovered that Ghostscript incorrectly handled debug
logging. 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. This issue only
affected Ubuntu 9.04 and Ubuntu 9.10. The default compiler options for
affected releases should reduce the vulnerability to a denial of service.
(CVE-2009-4270)
It was discovered that Ghostscript incorrectly handled certain malformed
files. 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.
This issue only affected Ubuntu 8.04 LTS and Ubuntu 9.04. (CVE-2009-4897)
Dan Rosenberg discovered that Ghostscript incorrectly handled certain
recursive Postscript files. 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-2010-1628)
Rodrigo Rubira Branco and Dan Rosenberg discovered that Ghostscript
incorrectly handled certain malformed Postscript files. 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. This issue only affected
Ubuntu 8.04 LTS, 9.04 and 9.10. (CVE-2010-1869)