RHSA-2003:182 - Security Advisory

Topic

A ghostscript package fixing a command execution vulnerability is now
available.

Description

GNU Ghostscript is an interpreter for the PostScript language, and is often
used when printing to printers that do not have their own built-in
PostScript interpreter.

A flaw has been discovered in the way Ghostscript validates some PostScript
commands. This flaw allows an attacker to force commands to be executed by
a print spooler by submitting a malicious print job. Note that using the

• dSAFER option is not sufficient to prevent command execution.

Users of Ghostscript are advised to upgrade to these updated packages,
which are not vulnerable to this issue.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Affected Products

• Red Hat Enterprise Linux Server 2 ia64
• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 2 ia64
• Red Hat Enterprise Linux Workstation 2 i386

Fixes

• BZ - 91143 - CAN-2003-0354 ghostscript -dSAFER execution vulnerability

CVEs

• CVE-2003-0354

References

(none)